204242650 has 48 divisors (see below), whose sum is σ = 398188800. Its totient is φ = 77837760.

The previous prime is 204242617. The next prime is 204242651. The reversal of 204242650 is 56242402.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (204242651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113659 + ... + 115441.

It is an arithmetic number, because the mean of its divisors is an integer number (8295600).

Almost surely, 2^204242650 is an apocalyptic number.

204242650 is a deficient number, since it is larger than the sum of its proper divisors (193946150).

204242650 is a wasteful number, since it uses less digits than its factorization.

204242650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 204242650 is about 14291.3487816931. The cubic root of 204242650 is about 588.9098417581.

The spelling of 204242650 in words is "two hundred four million, two hundred forty-two thousand, six hundred fifty".