22045780 has 24 divisors (see below), whose sum is σ = 46513152. Its totient is φ = 8776992.

The previous prime is 22045759. The next prime is 22045801. The reversal of 22045780 is 8754022.

It is an interprime number because it is at equal distance from previous prime (22045759) and next prime (22045801).

It is a congruent number.

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, 1989 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (1938048).

Almost surely, 2^22045780 is an apocalyptic number.

22045780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22045780 is an abundant number, since it is smaller than the sum of its proper divisors (24467372).

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

22045780 is a wasteful number, since it uses less digits than its factorization.

22045780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175 (or 5173 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 22045780 is about 4695.2933880643. The cubic root of 22045780 is about 280.3981580435.

The spelling of 22045780 in words is "twenty-two million, forty-five thousand, seven hundred eighty".