391348232 has 32 divisors (see below), whose sum is σ = 801334080. Its totient is φ = 177696960.

The previous prime is 391348207. The next prime is 391348253. The reversal of 391348232 is 232843193.

It is a junction number, because it is equal to n+sod(n) for n = 391348192 and 391348201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112958 + ... + 116370.

It is an arithmetic number, because the mean of its divisors is an integer number (25041690).

Almost surely, 2^391348232 is an apocalyptic number.

It is an amenable number.

391348232 is an abundant number, since it is smaller than the sum of its proper divisors (409985848).

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

391348232 is a wasteful number, since it uses less digits than its factorization.

391348232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733 (or 4729 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 391348232 is about 19782.5233981916. The cubic root of 391348232 is about 731.4553016267.

The spelling of 391348232 in words is "three hundred ninety-one million, three hundred forty-eight thousand, two hundred thirty-two".