397333578628 has 48 divisors (see below), whose sum is σ = 844773955200. Its totient is φ = 159726124800.

The previous prime is 397333578623. The next prime is 397333578673. The reversal of 397333578628 is 826875333793.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 397333578628.

It is not an unprimeable number, because it can be changed into a prime (397333578623) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3643633 + ... + 3751096.

It is an arithmetic number, because the mean of its divisors is an integer number (17599457400).

Almost surely, 2^397333578628 is an apocalyptic number.

397333578628 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

397333578628 is an abundant number, since it is smaller than the sum of its proper divisors (447440376572).

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

397333578628 is a wasteful number, since it uses less digits than its factorization.

397333578628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7394860 (or 7394858 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 64.

The spelling of 397333578628 in words is "three hundred ninety-seven billion, three hundred thirty-three million, five hundred seventy-eight thousand, six hundred twenty-eight".