20238377720 has 48 divisors (see below), whose sum is σ = 50052363480. Its totient is φ = 7359408320.

The previous prime is 20238377681. The next prime is 20238377837. The reversal of 20238377720 is 2777383202.

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 11 ways as a sum of consecutive naturals, for example, 2085902 + ... + 2095581.

Almost surely, 2^20238377720 is an apocalyptic number.

20238377720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20238377720 is an abundant number, since it is smaller than the sum of its proper divisors (29813985760).

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

20238377720 is a wasteful number, since it uses less digits than its factorization.

20238377720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181516 (or 4181501 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 20238377720 in words is "twenty billion, two hundred thirty-eight million, three hundred seventy-seven thousand, seven hundred twenty".