22340916 has 36 divisors (see below), whose sum is σ = 60818212. Its totient is φ = 6873984.

The previous prime is 22340909. The next prime is 22340917. The reversal of 22340916 is 61904322.

It can be written as a sum of positive squares in 2 ways, for example, as 2090916 + 20250000 = 1446^2 + 4500^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22340916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22340917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23401 + ... + 24336.

Almost surely, 2^22340916 is an apocalyptic number.

22340916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22340916 is an abundant number, since it is smaller than the sum of its proper divisors (38477296).

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

22340916 is a wasteful number, since it uses less digits than its factorization.

22340916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47760 (or 47755 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 22340916 is about 4726.6178182713. The cubic root of 22340916 is about 281.6438842646.

The spelling of 22340916 in words is "twenty-two million, three hundred forty thousand, nine hundred sixteen".