397394700000 has 144 divisors (see below), whose sum is σ = 1303868890800. Its totient is φ = 105971840000.

The previous prime is 397394699929. The next prime is 397394700007. The reversal of 397394700000 is 7493793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397394700007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362325 + ... + 962324.

It is an arithmetic number, because the mean of its divisors is an integer number (9054645075).

Almost surely, 2^397394700000 is an apocalyptic number.

397394700000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397394700000 is an abundant number, since it is smaller than the sum of its proper divisors (906474190800).

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

397394700000 is an equidigital number, since it uses as much as digits as its factorization.

397394700000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324687 (or 1324659 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 42.

The spelling of 397394700000 in words is "three hundred ninety-seven billion, three hundred ninety-four million, seven hundred thousand".