20251452940 has 12 divisors (see below), whose sum is σ = 42528051216. Its totient is φ = 8100581168.

The previous prime is 20251452911. The next prime is 20251452943. The reversal of 20251452940 is 4925415202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20251452896 and 20251452905.

It is not an unprimeable number, because it can be changed into a prime (20251452943) 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, 506286304 + ... + 506286343.

It is an arithmetic number, because the mean of its divisors is an integer number (3544004268).

Almost surely, 2^20251452940 is an apocalyptic number.

20251452940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20251452940 is an abundant number, since it is smaller than the sum of its proper divisors (22276598276).

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

20251452940 is a wasteful number, since it uses less digits than its factorization.

20251452940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012572656 (or 1012572654 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 20251452940 in words is "twenty billion, two hundred fifty-one million, four hundred fifty-two thousand, nine hundred forty".