20482432780 has 48 divisors (see below), whose sum is σ = 43325694720. Its totient is φ = 8133617408.

The previous prime is 20482432769. The next prime is 20482432781. The reversal of 20482432780 is 8723428402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20482432781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1881834 + ... + 1892686.

It is an arithmetic number, because the mean of its divisors is an integer number (902618640).

Almost surely, 2^20482432780 is an apocalyptic number.

20482432780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20482432780 is an abundant number, since it is smaller than the sum of its proper divisors (22843261940).

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

20482432780 is a wasteful number, since it uses less digits than its factorization.

20482432780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538 (or 11536 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 20482432780 in words is "twenty billion, four hundred eighty-two million, four hundred thirty-two thousand, seven hundred eighty".