391482040 has 32 divisors (see below), whose sum is σ = 882388080. Its totient is φ = 156316672.

The previous prime is 391482037. The next prime is 391482067. The reversal of 391482040 is 40284193.

It is a junction number, because it is equal to n+sod(n) for n = 391481993 and 391482011.

It is a congruent number.

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, 15144 + ... + 31816.

Almost surely, 2^391482040 is an apocalyptic number.

It is an amenable number.

391482040 is an abundant number, since it is smaller than the sum of its proper divisors (490906040).

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

391482040 is a wasteful number, since it uses less digits than its factorization.

391482040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17271 (or 17267 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 391482040 is about 19785.9050841755. The cubic root of 391482040 is about 731.5386574125.

The spelling of 391482040 in words is "three hundred ninety-one million, four hundred eighty-two thousand, forty".