20302927940 has 24 divisors (see below), whose sum is σ = 42678955032. Its totient is φ = 8113017600.

The previous prime is 20302927921. The next prime is 20302927951. The reversal of 20302927940 is 4972920302.

It can be written as a sum of positive squares in 4 ways, for example, as 988599364 + 19314328576 = 31442^2 + 138976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20302927894 and 20302927903.

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 7 ways as a sum of consecutive naturals, for example, 489161 + ... + 529040.

It is an arithmetic number, because the mean of its divisors is an integer number (1778289793).

Almost surely, 2^20302927940 is an apocalyptic number.

20302927940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302927940 is an abundant number, since it is smaller than the sum of its proper divisors (22376027092).

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

20302927940 is a wasteful number, since it uses less digits than its factorization.

20302927940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019207 (or 1019205 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 20302927940 in words is "twenty billion, three hundred two million, nine hundred twenty-seven thousand, nine hundred forty".