397303488 has 112 divisors (see below), whose sum is σ = 1195384960. Its totient is φ = 129330432.

The previous prime is 397303469. The next prime is 397303523. The reversal of 397303488 is 884303793.

It is a happy number.

It is a super-2 number, since 2×397303488² = 315700123153932288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71631 + ... + 76977.

It is an arithmetic number, because the mean of its divisors is an integer number (10673080).

Almost surely, 2^397303488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397303488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597692480).

397303488 is an abundant number, since it is smaller than the sum of its proper divisors (798081472).

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

397303488 is a wasteful number, since it uses less digits than its factorization.

397303488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411 (or 5395 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 397303488 is about 19932.4732032932. The cubic root of 397303488 is about 735.1468927567.

The spelling of 397303488 in words is "three hundred ninety-seven million, three hundred three thousand, four hundred eighty-eight".