23994293408 has 24 divisors (see below), whose sum is σ = 50017517172. Its totient is φ = 11291431936.

The previous prime is 23994293399. The next prime is 23994293413. The reversal of 23994293408 is 80439249932.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23022599824 + 971693584 = 151732^2 + 31172^2 .

It is a super-2 number, since 2×23994293408² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23994293408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22053035 + ... + 22054122.

Almost surely, 2^23994293408 is an apocalyptic number.

It is an amenable number.

23994293408 is an abundant number, since it is smaller than the sum of its proper divisors (26023223764).

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

23994293408 is a wasteful number, since it uses less digits than its factorization.

23994293408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44107184 (or 44107176 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 23994293408 in words is "twenty-three billion, nine hundred ninety-four million, two hundred ninety-three thousand, four hundred eight".