220881442 has 16 divisors (see below), whose sum is σ = 352369440. Its totient is φ = 103482688.

The previous prime is 220881433. The next prime is 220881457. The reversal of 220881442 is 244188022.

It is a super-2 number, since 2×220881442² = 97577222839998728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6592 + ... + 22027.

It is an arithmetic number, because the mean of its divisors is an integer number (22023090).

Almost surely, 2^220881442 is an apocalyptic number.

220881442 is a deficient number, since it is larger than the sum of its proper divisors (131487998).

220881442 is a wasteful number, since it uses less digits than its factorization.

220881442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28865.

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 220881442 is about 14862.0806753294. The cubic root of 220881442 is about 604.4862263891.

The spelling of 220881442 in words is "two hundred twenty million, eight hundred eighty-one thousand, four hundred forty-two".