204002402 has 4 divisors (see below), whose sum is σ = 306003606. Its totient is φ = 102001200.

The previous prime is 204002399. The next prime is 204002473. The reversal of 204002402 is 204200402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133425601 + 70576801 = 11551^2 + 8401^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 51000599 + ... + 51000602.

Almost surely, 2^204002402 is an apocalyptic number.

204002402 is a deficient number, since it is larger than the sum of its proper divisors (102001204).

204002402 is a wasteful number, since it uses less digits than its factorization.

204002402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102001203.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 204002402 is about 14282.9409436572. The cubic root of 204002402 is about 588.6788421385.

Adding to 204002402 its reverse (204200402), we get a palindrome (408202804).

The spelling of 204002402 in words is "two hundred four million, two thousand, four hundred two".