20480493340 has 24 divisors (see below), whose sum is σ = 43014273120. Its totient is φ = 8191199808.

The previous prime is 20480493311. The next prime is 20480493391. The reversal of 20480493340 is 4339408402.

It is a self number, because there is not a number n which added to its sum of digits gives 20480493340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118854 + ... + 234706.

It is an arithmetic number, because the mean of its divisors is an integer number (1792261380).

Almost surely, 2^20480493340 is an apocalyptic number.

20480493340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20480493340 is an abundant number, since it is smaller than the sum of its proper divisors (22533779780).

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

20480493340 is a wasteful number, since it uses less digits than its factorization.

20480493340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124701 (or 124699 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 20480493340 in words is "twenty billion, four hundred eighty million, four hundred ninety-three thousand, three hundred forty".