22742448 has 40 divisors (see below), whose sum is σ = 59036400. Its totient is φ = 7544064.

The previous prime is 22742443. The next prime is 22742453. The reversal of 22742448 is 84424722.

It is an interprime number because it is at equal distance from previous prime (22742443) and next prime (22742453).

It is not an unprimeable number, because it can be changed into a prime (22742443) 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, 9958 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (1475910).

Almost surely, 2^22742448 is an apocalyptic number.

It is an amenable number.

22742448 is an abundant number, since it is smaller than the sum of its proper divisors (36293952).

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

22742448 is a wasteful number, since it uses less digits than its factorization.

22742448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2303 counting only the distinct ones).

The product of its digits is 28672, while the sum is 33.

The square root of 22742448 is about 4768.9042766657. The cubic root of 22742448 is about 283.3211984038.

The spelling of 22742448 in words is "twenty-two million, seven hundred forty-two thousand, four hundred forty-eight".