24243656420 has 24 divisors (see below), whose sum is σ = 50939113848. Its totient is φ = 9692236800.

The previous prime is 24243656399. The next prime is 24243656441. The reversal of 24243656420 is 2465634242.

It is an interprime number because it is at equal distance from previous prime (24243656399) and next prime (24243656441).

It can be written as a sum of positive squares in 4 ways, for example, as 4064317504 + 20179338916 = 63752^2 + 142054^2 .

It is a super-2 number, since 2×24243656420² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288461 + ... + 362900.

It is an arithmetic number, because the mean of its divisors is an integer number (2122463077).

Almost surely, 2^24243656420 is an apocalyptic number.

24243656420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24243656420 is an abundant number, since it is smaller than the sum of its proper divisors (26695457428).

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

24243656420 is a wasteful number, since it uses less digits than its factorization.

24243656420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653231 (or 653229 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

The spelling of 24243656420 in words is "twenty-four billion, two hundred forty-three million, six hundred fifty-six thousand, four hundred twenty".