204513402 has 16 divisors (see below), whose sum is σ = 410539392. Its totient is φ = 67919040.

The previous prime is 204513373. The next prime is 204513409. The reversal of 204513402 is 204315402.

It is a super-2 number, since 2×204513402² = 83651463195227208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204513409) 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 7 ways as a sum of consecutive naturals, for example, 61263 + ... + 64514.

It is an arithmetic number, because the mean of its divisors is an integer number (25658712).

Almost surely, 2^204513402 is an apocalyptic number.

204513402 is an abundant number, since it is smaller than the sum of its proper divisors (206025990).

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

204513402 is a wasteful number, since it uses less digits than its factorization.

204513402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126053.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 204513402 is about 14300.8182283392. The cubic root of 204513402 is about 589.1699541167.

Adding to 204513402 its reverse (204315402), we get a palindrome (408828804).

The spelling of 204513402 in words is "two hundred four million, five hundred thirteen thousand, four hundred two".