20202930540 has 72 divisors (see below), whose sum is σ = 65996247408. Its totient is φ = 4973028480.

The previous prime is 20202930521. The next prime is 20202930541. The reversal of 20202930540 is 4503920202.

It is not an unprimeable number, because it can be changed into a prime (20202930541) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4314526 + ... + 4319205.

Almost surely, 2^20202930540 is an apocalyptic number.

20202930540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202930540 is an abundant number, since it is smaller than the sum of its proper divisors (45793316868).

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

20202930540 is a wasteful number, since it uses less digits than its factorization.

20202930540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8633759 (or 8633754 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 20202930540 in words is "twenty billion, two hundred two million, nine hundred thirty thousand, five hundred forty".