397441424 has 20 divisors (see below), whose sum is σ = 775925040. Its totient is φ = 197202720.

The previous prime is 397441417. The next prime is 397441439. The reversal of 397441424 is 424144793.

It is a happy number.

It is a super-2 number, since 2×397441424² = 315919371022295552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92714 + ... + 96905.

It is an arithmetic number, because the mean of its divisors is an integer number (38796252).

Almost surely, 2^397441424 is an apocalyptic number.

It is an amenable number.

397441424 is a deficient number, since it is larger than the sum of its proper divisors (378483616).

397441424 is a wasteful number, since it uses less digits than its factorization.

397441424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189758 (or 189752 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 397441424 is about 19935.9329854411. The cubic root of 397441424 is about 735.2319591204.

The spelling of 397441424 in words is "three hundred ninety-seven million, four hundred forty-one thousand, four hundred twenty-four".