22573620 has 96 divisors (see below), whose sum is σ = 74390400. Its totient is φ = 5663232.

The previous prime is 22573613. The next prime is 22573631. The reversal of 22573620 is 2637522.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 7951 + ... + 10409.

It is an arithmetic number, because the mean of its divisors is an integer number (774900).

Almost surely, 2^22573620 is an apocalyptic number.

22573620 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 22573620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37195200).

22573620 is an abundant number, since it is smaller than the sum of its proper divisors (51816780).

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

22573620 is a wasteful number, since it uses less digits than its factorization.

22573620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 22573620 is about 4751.1703821269. The cubic root of 22573620 is about 282.6183804382.

The spelling of 22573620 in words is "twenty-two million, five hundred seventy-three thousand, six hundred twenty".