22749948 has 36 divisors (see below), whose sum is σ = 61931688. Its totient is φ = 6999840.

The previous prime is 22749941. The next prime is 22749953. The reversal of 22749948 is 84994722.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22749941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23838 + ... + 24773.

Almost surely, 2^22749948 is an apocalyptic number.

It is an amenable number.

22749948 is an abundant number, since it is smaller than the sum of its proper divisors (39181740).

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

22749948 is a wasteful number, since it uses less digits than its factorization.

22749948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48634 (or 48629 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 22749948 is about 4769.6905560005. The cubic root of 22749948 is about 283.3523395170.

The spelling of 22749948 in words is "twenty-two million, seven hundred forty-nine thousand, nine hundred forty-eight".