397424932 has 12 divisors (see below), whose sum is σ = 719476380. Its totient is φ = 191860256.

The previous prime is 397424917. The next prime is 397424947. The reversal of 397424932 is 239424793.

It is an interprime number because it is at equal distance from previous prime (397424917) and next prime (397424947).

It can be written as a sum of positive squares in 2 ways, for example, as 220641316 + 176783616 = 14854^2 + 13296^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1712923 + ... + 1713154.

It is an arithmetic number, because the mean of its divisors is an integer number (59956365).

Almost surely, 2^397424932 is an apocalyptic number.

It is an amenable number.

397424932 is a deficient number, since it is larger than the sum of its proper divisors (322051448).

397424932 is a wasteful number, since it uses less digits than its factorization.

397424932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426110 (or 3426108 counting only the distinct ones).

The product of its digits is 326592, while the sum is 43.

The square root of 397424932 is about 19935.5193561643. The cubic root of 397424932 is about 735.2217893927.

The spelling of 397424932 in words is "three hundred ninety-seven million, four hundred twenty-four thousand, nine hundred thirty-two".