1344214440 has 160 divisors (see below), whose sum is σ = 4640577480. Its totient is φ = 348738048.

The previous prime is 1344214427. The next prime is 1344214441. The reversal of 1344214440 is 444124431.

1344214440 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 214 + 440 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1002482244 + 341732196 = 31662^2 + 18486^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344214441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 114274 + ... + 125486.

Almost surely, 2^1344214440 is an apocalyptic number.

1344214440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1344214440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2320288740).

1344214440 is an abundant number, since it is smaller than the sum of its proper divisors (3296363040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1344214440 is a wasteful number, since it uses less digits than its factorization.

1344214440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273 (or 11260 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1344214440 is about 36663.5301082697. The cubic root of 1344214440 is about 1103.6283602586.

Adding to 1344214440 its reverse (444124431), we get a palindrome (1788338871).

Subtracting from 1344214440 its reverse (444124431), we obtain a palindrome (900090009).

The spelling of 1344214440 in words is "one billion, three hundred forty-four million, two hundred fourteen thousand, four hundred forty".