22092720 has 160 divisors (see below), whose sum is σ = 75536832. Its totient is φ = 5308416.

The previous prime is 22092703. The next prime is 22092731. The reversal of 22092720 is 2729022.

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

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 31 ways as a sum of consecutive naturals, for example, 227712 + ... + 227808.

Almost surely, 2^22092720 is an apocalyptic number.

22092720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22092720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37768416).

22092720 is an abundant number, since it is smaller than the sum of its proper divisors (53444112).

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

22092720 is a wasteful number, since it uses less digits than its factorization.

22092720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 22092720 is about 4700.2893527952. The cubic root of 22092720 is about 280.5970254173.

The spelling of 22092720 in words is "twenty-two million, ninety-two thousand, seven hundred twenty".