204264620 has 48 divisors (see below), whose sum is σ = 501650688. Its totient is φ = 68402880.

The previous prime is 204264617. The next prime is 204264629. The reversal of 204264620 is 26462402.

It is a self number, because there is not a number n which added to its sum of digits gives 204264620.

It is not an unprimeable number, because it can be changed into a prime (204264629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10946 + ... + 22985.

It is an arithmetic number, because the mean of its divisors is an integer number (10451056).

Almost surely, 2^204264620 is an apocalyptic number.

204264620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204264620 is an abundant number, since it is smaller than the sum of its proper divisors (297386068).

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

204264620 is a wasteful number, since it uses less digits than its factorization.

204264620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33990 (or 33988 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 204264620 is about 14292.1174078581. The cubic root of 204264620 is about 588.9309569779.

The spelling of 204264620 in words is "two hundred four million, two hundred sixty-four thousand, six hundred twenty".