24400222040 has 64 divisors (see below), whose sum is σ = 56024226720. Its totient is φ = 9561600000.

The previous prime is 24400222031. The next prime is 24400222051. The reversal of 24400222040 is 4022200442.

It is a Harshad number since it is a multiple of its sum of digits (20).

24400222040 is a modest number, since divided by 222040 gives 24400 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592520 + ... + 632360.

Almost surely, 2^24400222040 is an apocalyptic number.

24400222040 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 24400222040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28012113360).

24400222040 is an abundant number, since it is smaller than the sum of its proper divisors (31624004680).

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

24400222040 is a wasteful number, since it uses less digits than its factorization.

24400222040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40164 (or 40160 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 24400222040 its reverse (4022200442), we get a palindrome (28422422482).

The spelling of 24400222040 in words is "twenty-four billion, four hundred million, two hundred twenty-two thousand, forty".