22716040 has 64 divisors (see below), whose sum is σ = 53602560. Its totient is φ = 8655360.

The previous prime is 22716037. The next prime is 22716041. The reversal of 22716040 is 4061722.

It is not an unprimeable number, because it can be changed into a prime (22716041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80700 + ... + 80980.

It is an arithmetic number, because the mean of its divisors is an integer number (837540).

Almost surely, 2^22716040 is an apocalyptic number.

22716040 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 22716040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26801280).

22716040 is an abundant number, since it is smaller than the sum of its proper divisors (30886520).

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

22716040 is a wasteful number, since it uses less digits than its factorization.

22716040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 22716040 is about 4766.1347022509. The cubic root of 22716040 is about 283.2114939423.

Adding to 22716040 its reverse (4061722), we get a palindrome (26777762).

The spelling of 22716040 in words is "twenty-two million, seven hundred sixteen thousand, forty".