22115944 has 32 divisors (see below), whose sum is σ = 42768000. Its totient is φ = 10716160.

The previous prime is 22115941. The next prime is 22115959. The reversal of 22115944 is 44951122.

It is a super-2 number, since 2×22115944² = 978229958022272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22115941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49032 + ... + 49480.

It is an arithmetic number, because the mean of its divisors is an integer number (1336500).

Almost surely, 2^22115944 is an apocalyptic number.

It is an amenable number.

22115944 is a deficient number, since it is larger than the sum of its proper divisors (20652056).

22115944 is a wasteful number, since it uses less digits than its factorization.

22115944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 629 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 22115944 is about 4702.7591900926. The cubic root of 22115944 is about 280.6953127449.

The spelling of 22115944 in words is "twenty-two million, one hundred fifteen thousand, nine hundred forty-four".