397038100 has 36 divisors (see below), whose sum is σ = 862632288. Its totient is φ = 158620000.

The previous prime is 397038097. The next prime is 397038113. The reversal of 397038100 is 1830793.

It is a super-2 number, since 2×397038100² = 315278505703220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101175 + ... + 105025.

It is an arithmetic number, because the mean of its divisors is an integer number (23962008).

Almost surely, 2^397038100 is an apocalyptic number.

It is an amenable number.

397038100 is an abundant number, since it is smaller than the sum of its proper divisors (465594188).

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

397038100 is a wasteful number, since it uses less digits than its factorization.

397038100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896 (or 4889 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 397038100 is about 19925.8149143266. The cubic root of 397038100 is about 734.9831702071.

Adding to 397038100 its reverse (1830793), we get a palindrome (398868893).

The spelling of 397038100 in words is "three hundred ninety-seven million, thirty-eight thousand, one hundred".