391425032 has 16 divisors (see below), whose sum is σ = 751823100. Its totient is φ = 190938880.

The previous prime is 391425011. The next prime is 391425053. The reversal of 391425032 is 230524193.

It is an interprime number because it is at equal distance from previous prime (391425011) and next prime (391425053).

It can be written as a sum of positive squares in 2 ways, for example, as 338339236 + 53085796 = 18394^2 + 7286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 391424986 and 391425004.

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, 596357 + ... + 597012.

Almost surely, 2^391425032 is an apocalyptic number.

It is an amenable number.

391425032 is a deficient number, since it is larger than the sum of its proper divisors (360398068).

391425032 is a wasteful number, since it uses less digits than its factorization.

391425032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193416 (or 1193412 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 391425032 is about 19784.4644102387. The cubic root of 391425032 is about 731.5031465623.

The spelling of 391425032 in words is "three hundred ninety-one million, four hundred twenty-five thousand, thirty-two".