396669400 has 24 divisors (see below), whose sum is σ = 922256820. Its totient is φ = 158667680.

The previous prime is 396669323. The next prime is 396669401. The reversal of 396669400 is 4966693.

It is a super-2 number, since 2×396669400² = 314693225792720000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396669401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 991474 + ... + 991873.

Almost surely, 2^396669400 is an apocalyptic number.

It is an amenable number.

396669400 is an abundant number, since it is smaller than the sum of its proper divisors (525587420).

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

396669400 is a wasteful number, since it uses less digits than its factorization.

396669400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983363 (or 1983354 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 396669400 is about 19916.5609481155. The cubic root of 396669400 is about 734.7555915269.

The spelling of 396669400 in words is "three hundred ninety-six million, six hundred sixty-nine thousand, four hundred".