391480572 has 48 divisors (see below), whose sum is σ = 1072171520. Its totient is φ = 108827712.

The previous prime is 391480559. The next prime is 391480589. The reversal of 391480572 is 275084193.

It is a self number, because there is not a number n which added to its sum of digits gives 391480572.

It is a congruent number.

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, 59872 + ... + 66087.

Almost surely, 2^391480572 is an apocalyptic number.

It is an amenable number.

391480572 is an abundant number, since it is smaller than the sum of its proper divisors (680690948).

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

391480572 is a wasteful number, since it uses less digits than its factorization.

391480572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126010 (or 126008 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 391480572 is about 19785.8679870255. The cubic root of 391480572 is about 731.5377430239.

The spelling of 391480572 in words is "three hundred ninety-one million, four hundred eighty thousand, five hundred seventy-two".