20302081340 has 48 divisors (see below), whose sum is σ = 43054314912. Its totient is φ = 8041203456.

The previous prime is 20302081339. The next prime is 20302081351. The reversal of 20302081340 is 4318020302.

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 15 ways as a sum of consecutive naturals, for example, 908987 + ... + 931053.

It is an arithmetic number, because the mean of its divisors is an integer number (896964894).

Almost surely, 2^20302081340 is an apocalyptic number.

20302081340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302081340 is an abundant number, since it is smaller than the sum of its proper divisors (22752233572).

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

20302081340 is a wasteful number, since it uses less digits than its factorization.

20302081340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22526 (or 22524 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The spelling of 20302081340 in words is "twenty billion, three hundred two million, eighty-one thousand, three hundred forty".