22331940 has 48 divisors (see below), whose sum is σ = 62741952. Its totient is φ = 5934976.

The previous prime is 22331929. The next prime is 22331951. The reversal of 22331940 is 4913322.

It is an interprime number because it is at equal distance from previous prime (22331929) and next prime (22331951).

It is a self number, because there is not a number n which added to its sum of digits gives 22331940.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27622 + ... + 28418.

It is an arithmetic number, because the mean of its divisors is an integer number (1307124).

Almost surely, 2^22331940 is an apocalyptic number.

22331940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22331940 is an abundant number, since it is smaller than the sum of its proper divisors (40410012).

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

22331940 is a wasteful number, since it uses less digits than its factorization.

22331940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 22331940 is about 4725.6682067196. The cubic root of 22331940 is about 281.6061601452.

The spelling of 22331940 in words is "twenty-two million, three hundred thirty-one thousand, nine hundred forty".