204001400 has 24 divisors (see below), whose sum is σ = 474303720. Its totient is φ = 81600480.

The previous prime is 204001367. The next prime is 204001403. The reversal of 204001400 is 4100402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204001403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 509804 + ... + 510203.

It is an arithmetic number, because the mean of its divisors is an integer number (19762655).

Almost surely, 2^204001400 is an apocalyptic number.

204001400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204001400 is an abundant number, since it is smaller than the sum of its proper divisors (270302320).

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

204001400 is a wasteful number, since it uses less digits than its factorization.

204001400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020023 (or 1020014 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 204001400 is about 14282.9058668046. The cubic root of 204001400 is about 588.6778783309.

Adding to 204001400 its reverse (4100402), we get a palindrome (208101802).

The spelling of 204001400 in words is "two hundred four million, one thousand, four hundred".