22860642 has 48 divisors (see below), whose sum is σ = 54452160. Its totient is φ = 6260352.

The previous prime is 22860641. The next prime is 22860647. The reversal of 22860642 is 24606822.

It is not an unprimeable number, because it can be changed into a prime (22860641) 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 23 ways as a sum of consecutive naturals, for example, 166798 + ... + 166934.

It is an arithmetic number, because the mean of its divisors is an integer number (1134420).

Almost surely, 2^22860642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22860642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27226080).

22860642 is an abundant number, since it is smaller than the sum of its proper divisors (31591518).

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

22860642 is a wasteful number, since it uses less digits than its factorization.

22860642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 22860642 is about 4781.2803724526. The cubic root of 22860642 is about 283.8111635633.

The spelling of 22860642 in words is "twenty-two million, eight hundred sixty thousand, six hundred forty-two".