22730238 has 24 divisors (see below), whose sum is σ = 49369008. Its totient is φ = 7558272.

The previous prime is 22730221. The next prime is 22730249. The reversal of 22730238 is 83203722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7470 + ... + 10062.

It is an arithmetic number, because the mean of its divisors is an integer number (2057042).

Almost surely, 2^22730238 is an apocalyptic number.

22730238 is an abundant number, since it is smaller than the sum of its proper divisors (26638770).

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

22730238 is a wasteful number, since it uses less digits than its factorization.

22730238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 22730238 is about 4767.6239365118. The cubic root of 22730238 is about 283.2704860222.

The spelling of 22730238 in words is "twenty-two million, seven hundred thirty thousand, two hundred thirty-eight".