204020124 has 72 divisors (see below), whose sum is σ = 604130688. Its totient is φ = 52990560.

The previous prime is 204019979. The next prime is 204020153. The reversal of 204020124 is 421020402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9304 + ... + 22239.

It is an arithmetic number, because the mean of its divisors is an integer number (8390704).

Almost surely, 2^204020124 is an apocalyptic number.

It is an amenable number.

204020124 is an abundant number, since it is smaller than the sum of its proper divisors (400110564).

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

204020124 is a wasteful number, since it uses less digits than its factorization.

204020124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31575 (or 31566 counting only the distinct ones).

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

The square root of 204020124 is about 14283.5613206231. The cubic root of 204020124 is about 588.6958881213.

Adding to 204020124 its reverse (421020402), we get a palindrome (625040526).

The spelling of 204020124 in words is "two hundred four million, twenty thousand, one hundred twenty-four".