38503981220 has 96 divisors (see below), whose sum is σ = 85434725376. Its totient is φ = 14547456000.

The previous prime is 38503981211. The next prime is 38503981231. The reversal of 38503981220 is 2218930583.

It is a super-2 number, since 2×38503981220² (a number of 22 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 31278005 + ... + 31279235.

It is an arithmetic number, because the mean of its divisors is an integer number (889945056).

Almost surely, 2^38503981220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38503981220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42717362688).

38503981220 is an abundant number, since it is smaller than the sum of its proper divisors (46930744156).

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

38503981220 is a wasteful number, since it uses less digits than its factorization.

38503981220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061 (or 2059 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 38503981220 in words is "thirty-eight billion, five hundred three million, nine hundred eighty-one thousand, two hundred twenty".