23418215424 has 352 divisors, whose sum is σ = 72630835200. Its totient is φ = 7445053440.

The previous prime is 23418215399. The next prime is 23418215473. The reversal of 23418215424 is 42451281432.

23418215424 is a `hidden beast` number, since 2 + 3 + 4 + 18 + 215 + 424 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76280679 + ... + 76280985.

It is an arithmetic number, because the mean of its divisors is an integer number (206337600).

Almost surely, 2^23418215424 is an apocalyptic number.

23418215424 is a gapful number since it is divisible by the number (24) 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 23418215424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36315417600).

23418215424 is an abundant number, since it is smaller than the sum of its proper divisors (49212619776).

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

23418215424 is a wasteful number, since it uses less digits than its factorization.

23418215424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 432 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

Adding to 23418215424 its reverse (42451281432), we get a palindrome (65869496856).

The spelling of 23418215424 in words is "twenty-three billion, four hundred eighteen million, two hundred fifteen thousand, four hundred twenty-four".