204787402 has 4 divisors (see below), whose sum is σ = 307181106. Its totient is φ = 102393700.

The previous prime is 204787399. The next prime is 204787409.

204787402 is nontrivially palindromic in base 10.

204787402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 149597361 + 55190041 = 12231^2 + 7429^2 .

It is not an unprimeable number, because it can be changed into a prime (204787409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51196849 + ... + 51196852.

Almost surely, 2^204787402 is an apocalyptic number.

204787402 is a deficient number, since it is larger than the sum of its proper divisors (102393704).

204787402 is a wasteful number, since it uses less digits than its factorization.

204787402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102393703.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 204787402 is about 14310.3948932236. The cubic root of 204787402 is about 589.4329532250.

The spelling of 204787402 in words is "two hundred four million, seven hundred eighty-seven thousand, four hundred two".