20107244040 has 128 divisors (see below), whose sum is σ = 65931788160. Its totient is φ = 4875577344.

The previous prime is 20107244033. The next prime is 20107244051. The reversal of 20107244040 is 4044270102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20107244040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8332 + ... + 200708.

It is an arithmetic number, because the mean of its divisors is an integer number (515092095).

Almost surely, 2^20107244040 is an apocalyptic number.

20107244040 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 20107244040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32965894080).

20107244040 is an abundant number, since it is smaller than the sum of its proper divisors (45824544120).

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

20107244040 is a wasteful number, since it uses less digits than its factorization.

20107244040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192471 (or 192467 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The spelling of 20107244040 in words is "twenty billion, one hundred seven million, two hundred forty-four thousand, forty".