22375840 has 48 divisors (see below), whose sum is σ = 53397792. Its totient is φ = 8859904.

The previous prime is 22375817. The next prime is 22375877. The reversal of 22375840 is 4857322.

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, 16467 + ... + 17773.

It is an arithmetic number, because the mean of its divisors is an integer number (1112454).

Almost surely, 2^22375840 is an apocalyptic number.

22375840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22375840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26698896).

22375840 is an abundant number, since it is smaller than the sum of its proper divisors (31021952).

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

22375840 is a wasteful number, since it uses less digits than its factorization.

22375840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1421 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 22375840 is about 4730.3107720318. The cubic root of 22375840 is about 281.7905659567.

The spelling of 22375840 in words is "twenty-two million, three hundred seventy-five thousand, eight hundred forty".