397552427100 has 54 divisors (see below), whose sum is σ = 1246105999320. Its totient is φ = 106013980320.

The previous prime is 397552427093. The next prime is 397552427137. The reversal of 397552427100 is 1724255793.

It is a happy number.

397552427100 is a `hidden beast` number, since 3 + 9 + 75 + 52 + 427 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 220861560 + ... + 220863359.

Almost surely, 2^397552427100 is an apocalyptic number.

397552427100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397552427100 is an abundant number, since it is smaller than the sum of its proper divisors (848553572220).

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

397552427100 is a wasteful number, since it uses less digits than its factorization.

397552427100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441724939 (or 441724929 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 397552427100 in words is "three hundred ninety-seven billion, five hundred fifty-two million, four hundred twenty-seven thousand, one hundred".