22948728 has 32 divisors (see below), whose sum is σ = 62588160. Its totient is φ = 6954080.

The previous prime is 22948703. The next prime is 22948741. The reversal of 22948728 is 82784922.

It is a self number, because there is not a number n which added to its sum of digits gives 22948728.

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, 43200 + ... + 43727.

It is an arithmetic number, because the mean of its divisors is an integer number (1955880).

Almost surely, 2^22948728 is an apocalyptic number.

It is an amenable number.

22948728 is an abundant number, since it is smaller than the sum of its proper divisors (39639432).

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

22948728 is a wasteful number, since it uses less digits than its factorization.

22948728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86947 (or 86943 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 22948728 is about 4790.4830654121. The cubic root of 22948728 is about 284.1752208400.

The spelling of 22948728 in words is "twenty-two million, nine hundred forty-eight thousand, seven hundred twenty-eight".