204214731 has 16 divisors (see below), whose sum is σ = 312770304. Its totient is φ = 116099424.

The previous prime is 204214667. The next prime is 204214741. The reversal of 204214731 is 137412402.

It is a happy number.

It is not a de Polignac number, because 204214731 - 2⁶ = 204214667 is a prime.

It is a super-2 number, since 2×204214731² = 83407312714804722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204214741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20545 + ... + 28818.

It is an arithmetic number, because the mean of its divisors is an integer number (19548144).

Almost surely, 2^204214731 is an apocalyptic number.

204214731 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

204214731 is a deficient number, since it is larger than the sum of its proper divisors (108555573).

204214731 is a wasteful number, since it uses less digits than its factorization.

204214731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49570.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 204214731 is about 14290.3719685668. The cubic root of 204214731 is about 588.8830068094.

It can be divided in two parts, 20421 and 4731, that added together give a palindrome (25152).

The spelling of 204214731 in words is "two hundred four million, two hundred fourteen thousand, seven hundred thirty-one".