22933881 has 16 divisors (see below), whose sum is σ = 34054720. Its totient is φ = 15253920.

The previous prime is 22933879. The next prime is 22933891. The reversal of 22933881 is 18833922.

It is a happy number.

It is not a de Polignac number, because 22933881 - 2¹ = 22933879 is a prime.

It is a super-2 number, since 2×22933881² = 1051925795444322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22933811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16701 + ... + 18021.

It is an arithmetic number, because the mean of its divisors is an integer number (2128420).

Almost surely, 2^22933881 is an apocalyptic number.

It is an amenable number.

22933881 is a deficient number, since it is larger than the sum of its proper divisors (11120839).

22933881 is a wasteful number, since it uses less digits than its factorization.

22933881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973 (or 1967 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22933881 is about 4788.9331797385. The cubic root of 22933881 is about 284.1139239102.

The spelling of 22933881 in words is "twenty-two million, nine hundred thirty-three thousand, eight hundred eighty-one".