22738880 has 28 divisors (see below), whose sum is σ = 54147720. Its totient is φ = 9095424.

The previous prime is 22738879. The next prime is 22738889. The reversal of 22738880 is 8883722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22738889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35210 + ... + 35849.

Almost surely, 2^22738880 is an apocalyptic number.

22738880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22738880 is an abundant number, since it is smaller than the sum of its proper divisors (31408840).

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

22738880 is an equidigital number, since it uses as much as digits as its factorization.

22738880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71076 (or 71066 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 22738880 is about 4768.5301718664. The cubic root of 22738880 is about 283.3063811348.

The spelling of 22738880 in words is "twenty-two million, seven hundred thirty-eight thousand, eight hundred eighty".