22713516 has 72 divisors (see below), whose sum is σ = 66122784. Its totient is φ = 6439680.

The previous prime is 22713499. The next prime is 22713541. The reversal of 22713516 is 61531722.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22713516.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43336 + ... + 43856.

It is an arithmetic number, because the mean of its divisors is an integer number (918372).

Almost surely, 2^22713516 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 22713516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33061392).

22713516 is an abundant number, since it is smaller than the sum of its proper divisors (43409268).

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

22713516 is a wasteful number, since it uses less digits than its factorization.

22713516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 706 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 22713516 is about 4765.8699101004. The cubic root of 22713516 is about 283.2010042577.

The spelling of 22713516 in words is "twenty-two million, seven hundred thirteen thousand, five hundred sixteen".