23424018408 has 144 divisors (see below), whose sum is σ = 73895854500. Its totient is φ = 6683668992.

The previous prime is 23424018391. The next prime is 23424018413. The reversal of 23424018408 is 80481042432.

23424018408 is a `hidden beast` number, since 2 + 3 + 4 + 240 + 1 + 8 + 408 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23128934724 + 295083684 = 152082^2 + 17178^2 .

It is a super-3 number, since 3×23424018408³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2920708 + ... + 2928716.

Almost surely, 2^23424018408 is an apocalyptic number.

23424018408 is a gapful number since it is divisible by the number (28) 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 23424018408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36947927250).

23424018408 is an abundant number, since it is smaller than the sum of its proper divisors (50471836092).

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

23424018408 is a wasteful number, since it uses less digits than its factorization.

23424018408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864 (or 8850 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 23424018408 in words is "twenty-three billion, four hundred twenty-four million, eighteen thousand, four hundred eight".