22999816 has 48 divisors (see below), whose sum is σ = 52367040. Its totient is φ = 9424800.

The previous prime is 22999787. The next prime is 22999817. The reversal of 22999816 is 61899922.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (22999817) 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 11 ways as a sum of consecutive naturals, for example, 7741 + ... + 10291.

It is an arithmetic number, because the mean of its divisors is an integer number (1090980).

Almost surely, 2^22999816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22999816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26183520).

22999816 is an abundant number, since it is smaller than the sum of its proper divisors (29367224).

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

22999816 is a wasteful number, since it uses less digits than its factorization.

22999816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 2583 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 22999816 is about 4795.8123399483. The cubic root of 22999816 is about 284.3859396186.

The spelling of 22999816 in words is "twenty-two million, nine hundred ninety-nine thousand, eight hundred sixteen".