400204200 has 96 divisors (see below), whose sum is σ = 1353440160. Its totient is φ = 97017600.

The previous prime is 400204159. The next prime is 400204229. The reversal of 400204200 is 2402004.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23719 + ... + 36918.

It is an arithmetic number, because the mean of its divisors is an integer number (14098335).

Almost surely, 2^400204200 is an apocalyptic number.

400204200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400204200 is an abundant number, since it is smaller than the sum of its proper divisors (953235960).

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

400204200 is a wasteful number, since it uses less digits than its factorization.

400204200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60667 (or 60658 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 400204200 is about 20005.1043486406. The cubic root of 400204200 is about 736.9316582707.

Adding to 400204200 its reverse (2402004), we get a palindrome (402606204).

The spelling of 400204200 in words is "four hundred million, two hundred four thousand, two hundred".