22901280 has 48 divisors (see below), whose sum is σ = 72140544. Its totient is φ = 6106880.

The previous prime is 22901269. The next prime is 22901293. The reversal of 22901280 is 8210922.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22901280.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23376 + ... + 24335.

It is an arithmetic number, because the mean of its divisors is an integer number (1502928).

Almost surely, 2^22901280 is an apocalyptic number.

22901280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22901280 is an abundant number, since it is smaller than the sum of its proper divisors (49239264).

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

22901280 is a wasteful number, since it uses less digits than its factorization.

22901280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47729 (or 47721 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 22901280 is about 4785.5281840148. The cubic root of 22901280 is about 283.9792354057.

It can be divided in two parts, 2290 and 1280, that added together give a triangular number (3570 = T₈₄).

The spelling of 22901280 in words is "twenty-two million, nine hundred one thousand, two hundred eighty".