397539956460 has 48 divisors (see below), whose sum is σ = 1113216412896. Its totient is φ = 106000699392.

The previous prime is 397539956447. The next prime is 397539956467. The reversal of 397539956460 is 64659935793.

It is a junction number, because it is equal to n+sod(n) for n = 397539956391 and 397539956400.

It is not an unprimeable number, because it can be changed into a prime (397539956467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344524 + ... + 955916.

It is an arithmetic number, because the mean of its divisors is an integer number (23192008602).

Almost surely, 2^397539956460 is an apocalyptic number.

397539956460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397539956460 is an abundant number, since it is smaller than the sum of its proper divisors (715676456436).

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

397539956460 is a wasteful number, since it uses less digits than its factorization.

397539956460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622242 (or 622240 counting only the distinct ones).

The product of its (nonzero) digits is 165337200, while the sum is 66.

The spelling of 397539956460 in words is "three hundred ninety-seven billion, five hundred thirty-nine million, nine hundred fifty-six thousand, four hundred sixty".