24406039872 has 84 divisors (see below), whose sum is σ = 70018084500. Its totient is φ = 8128069632.

The previous prime is 24406039787. The next prime is 24406039877. The reversal of 24406039872 is 27893060442.

It can be written as a sum of positive squares in 2 ways, for example, as 10655194176 + 13750845696 = 103224^2 + 117264^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24406039877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 645754 + ... + 682502.

It is an arithmetic number, because the mean of its divisors is an integer number (833548625).

Almost surely, 2^24406039872 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 24406039872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35009042250).

24406039872 is an abundant number, since it is smaller than the sum of its proper divisors (45612044628).

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

24406039872 is a wasteful number, since it uses less digits than its factorization.

24406039872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37920 (or 37907 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 24406039872 in words is "twenty-four billion, four hundred six million, thirty-nine thousand, eight hundred seventy-two".