389880000 has 420 divisors, whose sum is σ = 1511609880. Its totient is φ = 98496000.

The previous prime is 389879977. The next prime is 389880013. The reversal of 389880000 is 88983.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

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 (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 20519991 + ... + 20520009.

Almost surely, 2^389880000 is an apocalyptic number.

389880000 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 389880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755804940).

389880000 is an abundant number, since it is smaller than the sum of its proper divisors (1121729880).

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

389880000 is an equidigital number, since it uses as much as digits as its factorization.

389880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 389880000 is about 19745.3792062852. The cubic root of 389880000 is about 730.5394149135.

The spelling of 389880000 in words is "three hundred eighty-nine million, eight hundred eighty thousand".