22315944 has 32 divisors (see below), whose sum is σ = 63760320. Its totient is φ = 6375936.

The previous prime is 22315933. The next prime is 22315973. The reversal of 22315944 is 44951322.

It is a super-3 number, since 3×22315944³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66249 + ... + 66584.

It is an arithmetic number, because the mean of its divisors is an integer number (1992510).

Almost surely, 2^22315944 is an apocalyptic number.

22315944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22315944 is an abundant number, since it is smaller than the sum of its proper divisors (41444376).

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

22315944 is a wasteful number, since it uses less digits than its factorization.

22315944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132849 (or 132845 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 22315944 is about 4723.9754444747. The cubic root of 22315944 is about 281.5389074706.

The spelling of 22315944 in words is "twenty-two million, three hundred fifteen thousand, nine hundred forty-four".