204040402 has 24 divisors (see below), whose sum is σ = 315642708. Its totient is φ = 98899200.

The previous prime is 204040399. The next prime is 204040423.

204040402 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 201044041 + 2996361 = 14179^2 + 1731^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1489278 + ... + 1489414.

Almost surely, 2^204040402 is an apocalyptic number.

204040402 is a deficient number, since it is larger than the sum of its proper divisors (111602306).

204040402 is a wasteful number, since it uses less digits than its factorization.

204040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 204040402 is about 14284.2711399637. The cubic root of 204040402 is about 588.7153913931.

The spelling of 204040402 in words is "two hundred four million, forty thousand, four hundred two".