22044780 has 36 divisors (see below), whose sum is σ = 66869712. Its totient is φ = 5878560.

The previous prime is 22044779. The next prime is 22044791. The reversal of 22044780 is 8744022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61056 + ... + 61415.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^22044780 is an apocalyptic number.

22044780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22044780 is an abundant number, since it is smaller than the sum of its proper divisors (44824932).

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

22044780 is a wasteful number, since it uses less digits than its factorization.

22044780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122486 (or 122481 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22044780 is about 4695.1868972385. The cubic root of 22044780 is about 280.3939183447.

The spelling of 22044780 in words is "twenty-two million, forty-four thousand, seven hundred eighty".