204931420 has 12 divisors (see below), whose sum is σ = 430356024. Its totient is φ = 81972560.

The previous prime is 204931411. The next prime is 204931423. The reversal of 204931420 is 24139402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204931423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5123266 + ... + 5123305.

It is an arithmetic number, because the mean of its divisors is an integer number (35863002).

Almost surely, 2^204931420 is an apocalyptic number.

204931420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204931420 is an abundant number, since it is smaller than the sum of its proper divisors (225424604).

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

204931420 is a wasteful number, since it uses less digits than its factorization.

204931420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10246580 (or 10246578 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 204931420 is about 14315.4259454618. The cubic root of 204931420 is about 589.5710949636.

The spelling of 204931420 in words is "two hundred four million, nine hundred thirty-one thousand, four hundred twenty".