220834731 has 16 divisors (see below), whose sum is σ = 327326720. Its totient is φ = 131513760.

The previous prime is 220834727. The next prime is 220834741. The reversal of 220834731 is 137438022.

It is not a de Polignac number, because 220834731 - 2² = 220834727 is a prime.

It is a super-2 number, since 2×220834731² = 97535956831684722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220834711) 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, 90121 + ... + 92538.

It is an arithmetic number, because the mean of its divisors is an integer number (20457920).

Almost surely, 2^220834731 is an apocalyptic number.

220834731 is a deficient number, since it is larger than the sum of its proper divisors (106491989).

220834731 is a wasteful number, since it uses less digits than its factorization.

220834731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182706.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 220834731 is about 14860.5091097176. The cubic root of 220834731 is about 604.4436120549.

The spelling of 220834731 in words is "two hundred twenty million, eight hundred thirty-four thousand, seven hundred thirty-one".