22718016 has 56 divisors (see below), whose sum is σ = 66791840. Its totient is φ = 7572096.

The previous prime is 22718011. The next prime is 22718027. The reversal of 22718016 is 61081722.

It is a super-2 number, since 2×22718016² = 1032216501952512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22718011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4846 + ... + 8301.

Almost surely, 2^22718016 is an apocalyptic number.

It is an amenable number.

22718016 is an abundant number, since it is smaller than the sum of its proper divisors (44073824).

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

22718016 is a wasteful number, since it uses less digits than its factorization.

22718016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13168 (or 13152 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 22718016 is about 4766.3419936047. The cubic root of 22718016 is about 283.2197056096.

Adding to 22718016 its reverse (61081722), we get a palindrome (83799738).

The spelling of 22718016 in words is "twenty-two million, seven hundred eighteen thousand, sixteen".