22709916 has 24 divisors (see below), whose sum is σ = 58877840. Its totient is φ = 7569936.

The previous prime is 22709903. The next prime is 22709927. The reversal of 22709916 is 61990722.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105031 + ... + 105246.

Almost surely, 2^22709916 is an apocalyptic number.

It is an amenable number.

22709916 is an abundant number, since it is smaller than the sum of its proper divisors (36167924).

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

22709916 is a wasteful number, since it uses less digits than its factorization.

22709916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210290 (or 210282 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 22709916 is about 4765.4922096254. The cubic root of 22709916 is about 283.1860413976.

The spelling of 22709916 in words is "twenty-two million, seven hundred nine thousand, nine hundred sixteen".