22705938 has 48 divisors (see below), whose sum is σ = 51170496. Its totient is φ = 7270560.

The previous prime is 22705913. The next prime is 22705979. The reversal of 22705938 is 83950722.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68433 + ... + 68763.

It is an arithmetic number, because the mean of its divisors is an integer number (1066052).

Almost surely, 2^22705938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22705938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25585248).

22705938 is an abundant number, since it is smaller than the sum of its proper divisors (28464558).

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

22705938 is a wasteful number, since it uses less digits than its factorization.

22705938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 22705938 is about 4765.0748157820. The cubic root of 22705938 is about 283.1695055981.

The spelling of 22705938 in words is "twenty-two million, seven hundred five thousand, nine hundred thirty-eight".