22981480 has 32 divisors (see below), whose sum is σ = 51956640. Its totient is φ = 9148480.

The previous prime is 22981471. The next prime is 22981481. The reversal of 22981480 is 8418922.

It is not an unprimeable number, because it can be changed into a prime (22981481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7815 + ... + 10345.

It is an arithmetic number, because the mean of its divisors is an integer number (1623645).

Almost surely, 2^22981480 is an apocalyptic number.

22981480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22981480 is an abundant number, since it is smaller than the sum of its proper divisors (28975160).

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

22981480 is a wasteful number, since it uses less digits than its factorization.

22981480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 22981480 is about 4793.9002909948. The cubic root of 22981480 is about 284.3103464499.

The spelling of 22981480 in words is "twenty-two million, nine hundred eighty-one thousand, four hundred eighty".