22746556 has 48 divisors (see below), whose sum is σ = 47678400. Its totient is φ = 9289728.

The previous prime is 22746547. The next prime is 22746571. The reversal of 22746556 is 65564722.

It is a super-2 number, since 2×22746556² = 1034811619722272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88380 + ... + 88636.

It is an arithmetic number, because the mean of its divisors is an integer number (993300).

Almost surely, 2^22746556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22746556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23839200).

22746556 is an abundant number, since it is smaller than the sum of its proper divisors (24931844).

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

22746556 is a wasteful number, since it uses less digits than its factorization.

22746556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 404 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 22746556 is about 4769.3349641224. The cubic root of 22746556 is about 283.3382562774.

The spelling of 22746556 in words is "twenty-two million, seven hundred forty-six thousand, five hundred fifty-six".