397000934020 has 24 divisors (see below), whose sum is σ = 862450306200. Its totient is φ = 153324498432.

The previous prime is 397000933993. The next prime is 397000934039. The reversal of 397000934020 is 20439000793.

It can be written as a sum of positive squares in 4 ways, for example, as 145815532164 + 251185401856 = 381858^2 + 501184^2 .

It is a super-2 number, since 2×397000934020² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342241605 + ... + 342242764.

It is an arithmetic number, because the mean of its divisors is an integer number (35935429425).

Almost surely, 2^397000934020 is an apocalyptic number.

It is an amenable number.

397000934020 is an abundant number, since it is smaller than the sum of its proper divisors (465449372180).

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

397000934020 is a wasteful number, since it uses less digits than its factorization.

397000934020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684484407 (or 684484405 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 37.

The spelling of 397000934020 in words is "three hundred ninety-seven billion, nine hundred thirty-four thousand, twenty".