220950690 has 32 divisors (see below), whose sum is σ = 530686080. Its totient is φ = 58875264.

The previous prime is 220950689. The next prime is 220950701. The reversal of 220950690 is 96059022.

It is a super-2 number, since 2×220950690² = 97638414822952200, which contains 22 as substring.

It is an unprimeable number.

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, 60846 + ... + 64374.

It is an arithmetic number, because the mean of its divisors is an integer number (16583940).

Almost surely, 2^220950690 is an apocalyptic number.

220950690 is an abundant number, since it is smaller than the sum of its proper divisors (309735390).

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

220950690 is a wasteful number, since it uses less digits than its factorization.

220950690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 220950690 is about 14864.4101800240. The cubic root of 220950690 is about 604.5493901210.

The spelling of 220950690 in words is "two hundred twenty million, nine hundred fifty thousand, six hundred ninety".