20233982508 has 24 divisors (see below), whose sum is σ = 47221713840. Its totient is φ = 6743362560.

The previous prime is 20233982497. The next prime is 20233982557. The reversal of 20233982508 is 80528933202.

It is a self number, because there is not a number n which added to its sum of digits gives 20233982508.

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, 96273 + ... + 223016.

It is an arithmetic number, because the mean of its divisors is an integer number (1967571410).

Almost surely, 2^20233982508 is an apocalyptic number.

It is an amenable number.

20233982508 is an abundant number, since it is smaller than the sum of its proper divisors (26987731332).

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

20233982508 is a wasteful number, since it uses less digits than its factorization.

20233982508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324577 (or 324575 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

It can be divided in two parts, 20 and 233982508, that added together give a triangular number (233982528 = T₂₁₆₃₂).

The spelling of 20233982508 in words is "twenty billion, two hundred thirty-three million, nine hundred eighty-two thousand, five hundred eight".