22913340 has 96 divisors (see below), whose sum is σ = 67436544. Its totient is φ = 5806080.

The previous prime is 22913329. The next prime is 22913347. The reversal of 22913340 is 4331922.

It is a super-2 number, since 2×22913340² = 1050042299911200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22913340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22913347) 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 31 ways as a sum of consecutive naturals, for example, 180357 + ... + 180483.

It is an arithmetic number, because the mean of its divisors is an integer number (702464).

Almost surely, 2^22913340 is an apocalyptic number.

22913340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22913340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33718272).

22913340 is an abundant number, since it is smaller than the sum of its proper divisors (44523204).

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

22913340 is a wasteful number, since it uses less digits than its factorization.

22913340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 22913340 is about 4786.7880671699. The cubic root of 22913340 is about 284.0290752485.

The spelling of 22913340 in words is "twenty-two million, nine hundred thirteen thousand, three hundred forty".