397204900 has 27 divisors (see below), whose sum is σ = 862367331. Its totient is φ = 158802240.

The previous prime is 397204897. The next prime is 397204901. The reversal of 397204900 is 9402793.

The square root of 397204900 is 19930.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3896676 + 393308224 = 1974^2 + 19832^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397204901) 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 8 ways as a sum of consecutive naturals, for example, 198304 + ... + 200296.

Almost surely, 2^397204900 is an apocalyptic number.

397204900 is the 19930-th square number.

It is an amenable number.

397204900 is an abundant number, since it is smaller than the sum of its proper divisors (465162431).

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

397204900 is an equidigital number, since it uses as much as digits as its factorization.

397204900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The cubic root of 397204900 is about 735.0860805902.

The spelling of 397204900 in words is "three hundred ninety-seven million, two hundred four thousand, nine hundred".