38189880 has 96 divisors (see below), whose sum is σ = 128746800. Its totient is φ = 10181376.

The previous prime is 38189873. The next prime is 38189903. The reversal of 38189880 is 8898183.

38189880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 7756 + ... + 11684.

Almost surely, 2^38189880 is an apocalyptic number.

38189880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38189880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64373400).

38189880 is an abundant number, since it is smaller than the sum of its proper divisors (90556920).

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

38189880 is a wasteful number, since it uses less digits than its factorization.

38189880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 38189880 is about 6179.7961131416. The cubic root of 38189880 is about 336.7565859000.

The spelling of 38189880 in words is "thirty-eight million, one hundred eighty-nine thousand, eight hundred eighty".