397952798580 has 48 divisors (see below), whose sum is σ = 1238075375040. Its totient is φ = 106120746144.

The previous prime is 397952798539. The next prime is 397952798609. The reversal of 397952798580 is 85897259793.

397952798580 is a `hidden beast` number, since 3 + 9 + 7 + 9 + 527 + 98 + 5 + 8 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 397952798499 and 397952798508.

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, 368474274 + ... + 368475353.

It is an arithmetic number, because the mean of its divisors is an integer number (25793236980).

Almost surely, 2^397952798580 is an apocalyptic number.

397952798580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397952798580 is an abundant number, since it is smaller than the sum of its proper divisors (840122576460).

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

397952798580 is a wasteful number, since it uses less digits than its factorization.

397952798580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736949645 (or 736949637 counting only the distinct ones).

The product of its (nonzero) digits is 342921600, while the sum is 72.

The spelling of 397952798580 in words is "three hundred ninety-seven billion, nine hundred fifty-two million, seven hundred ninety-eight thousand, five hundred eighty".