22742148 has 96 divisors (see below), whose sum is σ = 64632960. Its totient is φ = 6128640.

The previous prime is 22742131. The next prime is 22742149. The reversal of 22742148 is 84124722.

It is not an unprimeable number, because it can be changed into a prime (22742149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49536 + ... + 49992.

It is an arithmetic number, because the mean of its divisors is an integer number (673260).

Almost surely, 2^22742148 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 22742148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32316480).

22742148 is an abundant number, since it is smaller than the sum of its proper divisors (41890812).

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

22742148 is a wasteful number, since it uses less digits than its factorization.

22742148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 515 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 22742148 is about 4768.8728227958. The cubic root of 22742148 is about 283.3199526168.

The spelling of 22742148 in words is "twenty-two million, seven hundred forty-two thousand, one hundred forty-eight".