397726088100 has 72 divisors (see below), whose sum is σ = 1255368172128. Its totient is φ = 96418444800.

The previous prime is 397726088041. The next prime is 397726088101. The reversal of 397726088100 is 1880627793.

It is a super-2 number, since 2×397726088100² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397726088101) 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, 60258229 + ... + 60264828.

Almost surely, 2^397726088100 is an apocalyptic number.

397726088100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397726088100 is an abundant number, since it is smaller than the sum of its proper divisors (857642084028).

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

397726088100 is a wasteful number, since it uses less digits than its factorization.

397726088100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120523085 (or 120523078 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 397726088100 in words is "three hundred ninety-seven billion, seven hundred twenty-six million, eighty-eight thousand, one hundred".