22990542 has 16 divisors (see below), whose sum is σ = 47224272. Its totient is φ = 7456320.

The previous prime is 22990523. The next prime is 22990549. The reversal of 22990542 is 24509922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22990549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51559 + ... + 52002.

It is an arithmetic number, because the mean of its divisors is an integer number (2951517).

Almost surely, 2^22990542 is an apocalyptic number.

22990542 is an abundant number, since it is smaller than the sum of its proper divisors (24233730).

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

22990542 is a wasteful number, since it uses less digits than its factorization.

22990542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103603.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 22990542 is about 4794.8453572561. The cubic root of 22990542 is about 284.3477110553.

It can be divided in two parts, 22990 and 542, that added together give a palindrome (23532).

The spelling of 22990542 in words is "twenty-two million, nine hundred ninety thousand, five hundred forty-two".