24623428840 has 72 divisors (see below), whose sum is σ = 56819587590. Its totient is φ = 9603643392.

The previous prime is 24623428807. The next prime is 24623428859. The reversal of 24623428840 is 4882432642.

It can be written as a sum of positive squares in 3 ways, for example, as 23249540484 + 1373888356 = 152478^2 + 37066^2 .

It is a super-3 number, since 3×24623428840³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 42674632 + ... + 42675208.

Almost surely, 2^24623428840 is an apocalyptic number.

24623428840 is a gapful number since it is divisible by the number (20) 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 24623428840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28409793795).

24623428840 is an abundant number, since it is smaller than the sum of its proper divisors (32196158750).

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

24623428840 is an frugal number, since it uses more digits than its factorization.

24623428840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 43.

The spelling of 24623428840 in words is "twenty-four billion, six hundred twenty-three million, four hundred twenty-eight thousand, eight hundred forty".