1397344432 has 40 divisors (see below), whose sum is σ = 2957310720. Its totient is φ = 634332480.

The previous prime is 1397344423. The next prime is 1397344433. The reversal of 1397344432 is 2344437931.

It is not an unprimeable number, because it can be changed into a prime (1397344433) 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, 142933 + ... + 152395.

It is an arithmetic number, because the mean of its divisors is an integer number (73932768).

Almost surely, 2^1397344432 is an apocalyptic number.

It is an amenable number.

1397344432 is an abundant number, since it is smaller than the sum of its proper divisors (1559966288).

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

1397344432 is a wasteful number, since it uses less digits than its factorization.

1397344432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10321 (or 10315 counting only the distinct ones).

The product of its digits is 217728, while the sum is 40.

The square root of 1397344432 is about 37381.0705036654. The cubic root of 1397344432 is about 1117.9811718715.

The spelling of 1397344432 in words is "one billion, three hundred ninety-seven million, three hundred forty-four thousand, four hundred thirty-two".