24440220040 has 32 divisors (see below), whose sum is σ = 55294326360. Its totient is φ = 9722073600.

The previous prime is 24440220023. The next prime is 24440220043. The reversal of 24440220040 is 4002204442.

It can be written as a sum of positive squares in 4 ways, for example, as 6549017476 + 17891202564 = 80926^2 + 133758^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24440219993 and 24440220020.

It is not an unprimeable number, because it can be changed into a prime (24440220043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1680621 + ... + 1695100.

Almost surely, 2^24440220040 is an apocalyptic number.

24440220040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24440220040 is an abundant number, since it is smaller than the sum of its proper divisors (30854106320).

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

24440220040 is a wasteful number, since it uses less digits than its factorization.

24440220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375913 (or 3375909 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 24440220040 its reverse (4002204442), we get a palindrome (28442424482).

The spelling of 24440220040 in words is "twenty-four billion, four hundred forty million, two hundred twenty thousand, forty".