220157444 has 48 divisors (see below), whose sum is σ = 435825600. Its totient is φ = 96598656.

The previous prime is 220157423. The next prime is 220157459. The reversal of 220157444 is 444751022.

It is a super-2 number, since 2×220157444² = 96938600297226272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 99947 + ... + 102125.

It is an arithmetic number, because the mean of its divisors is an integer number (9079700).

Almost surely, 2^220157444 is an apocalyptic number.

It is an amenable number.

220157444 is a deficient number, since it is larger than the sum of its proper divisors (215668156).

220157444 is a wasteful number, since it uses less digits than its factorization.

220157444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 220157444 is about 14837.7034611155. The cubic root of 220157444 is about 603.8250483746.

The spelling of 220157444 in words is "two hundred twenty million, one hundred fifty-seven thousand, four hundred forty-four".