22399073994 has 96 divisors (see below), whose sum is σ = 51068731392. Its totient is φ = 6537722400.

The previous prime is 22399073981. The next prime is 22399074007. The reversal of 22399073994 is 49937099322.

It is an interprime number because it is at equal distance from previous prime (22399073981) and next prime (22399074007).

It is a super-2 number, since 2×22399073994² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5016607 + ... + 5021069.

It is an arithmetic number, because the mean of its divisors is an integer number (531965952).

Almost surely, 2^22399073994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22399073994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25534365696).

22399073994 is an abundant number, since it is smaller than the sum of its proper divisors (28669657398).

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

22399073994 is a wasteful number, since it uses less digits than its factorization.

22399073994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744 (or 4733 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 57.

The spelling of 22399073994 in words is "twenty-two billion, three hundred ninety-nine million, seventy-three thousand, nine hundred ninety-four".