220085739 has 24 divisors (see below), whose sum is σ = 326197872. Its totient is φ = 142914240.

The previous prime is 220085713. The next prime is 220085857. The reversal of 220085739 is 937580022.

It is a happy number.

It is not a de Polignac number, because 220085739 - 2⁵ = 220085707 is a prime.

It is a super-2 number, since 2×220085739² = 96875465022352242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220085339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215049 + ... + 216069.

It is an arithmetic number, because the mean of its divisors is an integer number (13591578).

Almost surely, 2^220085739 is an apocalyptic number.

220085739 is a deficient number, since it is larger than the sum of its proper divisors (106112133).

220085739 is a wasteful number, since it uses less digits than its factorization.

220085739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 220085739 is about 14835.2869537465. The cubic root of 220085739 is about 603.7594862391.

The spelling of 220085739 in words is "two hundred twenty million, eighty-five thousand, seven hundred thirty-nine".