22602720 has 216 divisors, whose sum is σ = 85580712. Its totient is φ = 4999680.

The previous prime is 22602719. The next prime is 22602731. The reversal of 22602720 is 2720622.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 729105 + ... + 729135.

It is an arithmetic number, because the mean of its divisors is an integer number (396207).

Almost surely, 2^22602720 is an apocalyptic number.

22602720 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 22602720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42790356).

22602720 is an abundant number, since it is smaller than the sum of its proper divisors (62977992).

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

22602720 is a wasteful number, since it uses less digits than its factorization.

22602720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 22602720 is about 4754.2317991448. The cubic root of 22602720 is about 282.7397708550.

The spelling of 22602720 in words is "twenty-two million, six hundred two thousand, seven hundred twenty".