20252716940 has 12 divisors (see below), whose sum is σ = 42530705616. Its totient is φ = 8101086768.

The previous prime is 20252716927. The next prime is 20252716943. The reversal of 20252716940 is 4961725202.

It is a junction number, because it is equal to n+sod(n) for n = 20252716894 and 20252716903.

It is not an unprimeable number, because it can be changed into a prime (20252716943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506317904 + ... + 506317943.

It is an arithmetic number, because the mean of its divisors is an integer number (3544225468).

Almost surely, 2^20252716940 is an apocalyptic number.

20252716940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20252716940 is an abundant number, since it is smaller than the sum of its proper divisors (22277988676).

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

20252716940 is a wasteful number, since it uses less digits than its factorization.

20252716940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012635856 (or 1012635854 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 20252716940 in words is "twenty billion, two hundred fifty-two million, seven hundred sixteen thousand, nine hundred forty".