20381852304 has 120 divisors (see below), whose sum is σ = 63550611072. Its totient is φ = 6044885760.

The previous prime is 20381852291. The next prime is 20381852389. The reversal of 20381852304 is 40325818302.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 62439 + ... + 211334.

Almost surely, 2^20381852304 is an apocalyptic number.

20381852304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20381852304 is an abundant number, since it is smaller than the sum of its proper divisors (43168758768).

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

20381852304 is a wasteful number, since it uses less digits than its factorization.

20381852304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273845 (or 273836 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 20381852304 in words is "twenty billion, three hundred eighty-one million, eight hundred fifty-two thousand, three hundred four".