397936032 has 96 divisors (see below), whose sum is σ = 1129101120. Its totient is φ = 121989120.

The previous prime is 397936013. The next prime is 397936039. The reversal of 397936032 is 230639793.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (397936039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522532 + ... + 523292.

It is an arithmetic number, because the mean of its divisors is an integer number (11761470).

Almost surely, 2^397936032 is an apocalyptic number.

397936032 is a gapful number since it is divisible by the number (32) 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 397936032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564550560).

397936032 is an abundant number, since it is smaller than the sum of its proper divisors (731165088).

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

397936032 is a wasteful number, since it uses less digits than its factorization.

397936032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 42.

The square root of 397936032 is about 19948.3340657810. The cubic root of 397936032 is about 735.5368265706.

The spelling of 397936032 in words is "three hundred ninety-seven million, nine hundred thirty-six thousand, thirty-two".