20458802308 has 12 divisors (see below), whose sum is σ = 40917604672. Its totient is φ = 8768058120.

The previous prime is 20458802281. The next prime is 20458802323. The reversal of 20458802308 is 80320885402.

20458802308 is an admirable number.

It is a super-2 number, since 2×20458802308² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365335728 + ... + 365335783.

Almost surely, 2^20458802308 is an apocalyptic number.

20458802308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20458802308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20458802308 is a wasteful number, since it uses less digits than its factorization.

20458802308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730671522 (or 730671520 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The spelling of 20458802308 in words is "twenty billion, four hundred fifty-eight million, eight hundred two thousand, three hundred eight".