22702638 has 16 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 6486456.

The previous prime is 22702637. The next prime is 22702639. The reversal of 22702638 is 83620722.

It is an interprime number because it is at equal distance from previous prime (22702637) and next prime (22702639).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22702637) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 270228 + ... + 270311.

It is an arithmetic number, because the mean of its divisors is an integer number (3243240).

Almost surely, 2^22702638 is an apocalyptic number.

22702638 is an abundant number, since it is smaller than the sum of its proper divisors (29189202).

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

22702638 is a wasteful number, since it uses less digits than its factorization.

22702638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540551.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22702638 is about 4764.7285337152. The cubic root of 22702638 is about 283.1557866516.

The spelling of 22702638 in words is "twenty-two million, seven hundred two thousand, six hundred thirty-eight".