1350223440 has 80 divisors (see below), whose sum is σ = 4222819008. Its totient is φ = 356866048.

The previous prime is 1350223423. The next prime is 1350223447. The reversal of 1350223440 is 443220531.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1350223440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350223447) 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 15 ways as a sum of consecutive naturals, for example, 2227 + ... + 52013.

Almost surely, 2^1350223440 is an apocalyptic number.

1350223440 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 1350223440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2111409504).

1350223440 is an abundant number, since it is smaller than the sum of its proper divisors (2872595568).

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

1350223440 is a wasteful number, since it uses less digits than its factorization.

1350223440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49916 (or 49910 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1350223440 is about 36745.3866492108. The cubic root of 1350223440 is about 1105.2704210431.

Adding to 1350223440 its reverse (443220531), we get a palindrome (1793443971).

The spelling of 1350223440 in words is "one billion, three hundred fifty million, two hundred twenty-three thousand, four hundred forty".