22557648 has 40 divisors (see below), whose sum is σ = 59380128. Its totient is φ = 7376512.

The previous prime is 22557637. The next prime is 22557649. The reversal of 22557648 is 84675522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22557649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1890 + ... + 6977.

Almost surely, 2^22557648 is an apocalyptic number.

It is an amenable number.

22557648 is an abundant number, since it is smaller than the sum of its proper divisors (36822480).

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

22557648 is a wasteful number, since it uses less digits than its factorization.

22557648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8931 (or 8925 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 22557648 is about 4749.4892356968. The cubic root of 22557648 is about 282.5517090194.

The spelling of 22557648 in words is "twenty-two million, five hundred fifty-seven thousand, six hundred forty-eight".