1344152440 has 32 divisors (see below), whose sum is σ = 3054296160. Its totient is φ = 532336000.

The previous prime is 1344152423. The next prime is 1344152441. The reversal of 1344152440 is 442514431.

It is a junction number, because it is equal to n+sod(n) for n = 1344152399 and 1344152408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344152441) 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 7 ways as a sum of consecutive naturals, for example, 162316 + ... + 170395.

It is an arithmetic number, because the mean of its divisors is an integer number (95446755).

Almost surely, 2^1344152440 is an apocalyptic number.

1344152440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344152440 is an abundant number, since it is smaller than the sum of its proper divisors (1710143720).

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

1344152440 is a wasteful number, since it uses less digits than its factorization.

1344152440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332823 (or 332819 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1344152440 is about 36662.6845716459. The cubic root of 1344152440 is about 1103.6113922292.

Adding to 1344152440 its reverse (442514431), we get a palindrome (1786666871).

The spelling of 1344152440 in words is "one billion, three hundred forty-four million, one hundred fifty-two thousand, four hundred forty".