204140004 has 12 divisors (see below), whose sum is σ = 476326704. Its totient is φ = 68046664.

The previous prime is 204139979. The next prime is 204140011. The reversal of 204140004 is 400041402.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8505822 + ... + 8505845.

It is an arithmetic number, because the mean of its divisors is an integer number (39693892).

Almost surely, 2^204140004 is an apocalyptic number.

It is an amenable number.

204140004 is an abundant number, since it is smaller than the sum of its proper divisors (272186700).

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

204140004 is a wasteful number, since it uses less digits than its factorization.

204140004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17011674 (or 17011672 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 204140004 is about 14287.7571367937. The cubic root of 204140004 is about 588.8111693063.

Adding to 204140004 its reverse (400041402), we get a palindrome (604181406).

The spelling of 204140004 in words is "two hundred four million, one hundred forty thousand, four".