22412916 has 48 divisors (see below), whose sum is σ = 58564800. Its totient is φ = 7412256.

The previous prime is 22412893. The next prime is 22412927. The reversal of 22412916 is 61921422.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22412916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14266 + ... + 15758.

It is an arithmetic number, because the mean of its divisors is an integer number (1220100).

Almost surely, 2^22412916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22412916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29282400).

22412916 is an abundant number, since it is smaller than the sum of its proper divisors (36151884).

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

22412916 is a wasteful number, since it uses less digits than its factorization.

22412916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1637 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 22412916 is about 4734.2281313853. The cubic root of 22412916 is about 281.9461191762.

The spelling of 22412916 in words is "twenty-two million, four hundred twelve thousand, nine hundred sixteen".