22606542 has 108 divisors (see below), whose sum is σ = 60981336. Its totient is φ = 6032880.

The previous prime is 22606531. The next prime is 22606547. The reversal of 22606542 is 24560622.

22606542 is a `hidden beast` number, since 2 + 2 + 6 + 0 + 654 + 2 = 666.

It is a super-2 number, since 2×22606542² = 1022111482395528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22606547) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 318367 + ... + 318437.

It is an arithmetic number, because the mean of its divisors is an integer number (564642).

Almost surely, 2^22606542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22606542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30490668).

22606542 is an abundant number, since it is smaller than the sum of its proper divisors (38374794).

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

22606542 is a wasteful number, since it uses less digits than its factorization.

22606542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 22606542 is about 4754.6337398374. The cubic root of 22606542 is about 282.7557065551.

The spelling of 22606542 in words is "twenty-two million, six hundred six thousand, five hundred forty-two".