22742848 has 56 divisors (see below), whose sum is σ = 48463200. Its totient is φ = 10556928.

The previous prime is 22742843. The next prime is 22742857. The reversal of 22742848 is 84824722.

It is a super-2 number, since 2×22742848² = 1034474270302208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22742843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71586 + ... + 71902.

Almost surely, 2^22742848 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 22742848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24231600).

22742848 is an abundant number, since it is smaller than the sum of its proper divisors (25720352).

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

22742848 is a wasteful number, since it uses less digits than its factorization.

22742848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 397 counting only the distinct ones).

The product of its digits is 57344, while the sum is 37.

The square root of 22742848 is about 4768.9462148361. The cubic root of 22742848 is about 283.3228594360.

The spelling of 22742848 in words is "twenty-two million, seven hundred forty-two thousand, eight hundred forty-eight".