204030252402 has 64 divisors (see below), whose sum is σ = 423547829760. Its totient is φ = 65469752064.

The previous prime is 204030252337. The next prime is 204030252407. The reversal of 204030252402 is 204252030402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (204030252407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17731383 + ... + 17742885.

It is an arithmetic number, because the mean of its divisors is an integer number (6617934840).

Almost surely, 2^204030252402 is an apocalyptic number.

204030252402 is an abundant number, since it is smaller than the sum of its proper divisors (219517577358).

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

204030252402 is a wasteful number, since it uses less digits than its factorization.

204030252402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12387.

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 204030252402 its reverse (204252030402), we get a palindrome (408282282804).

The spelling of 204030252402 in words is "two hundred four billion, thirty million, two hundred fifty-two thousand, four hundred two".