389019400 has 96 divisors (see below), whose sum is σ = 1127695680. Its totient is φ = 121248000.

The previous prime is 389019359. The next prime is 389019419. The reversal of 389019400 is 4910983.

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, 2770 + ... + 28030.

It is an arithmetic number, because the mean of its divisors is an integer number (11746830).

Almost surely, 2^389019400 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 389019400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563847840).

389019400 is an abundant number, since it is smaller than the sum of its proper divisors (738676280).

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

389019400 is a wasteful number, since it uses less digits than its factorization.

389019400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25295 (or 25286 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 389019400 is about 19723.5747267071. The cubic root of 389019400 is about 730.0015012167.

The spelling of 389019400 in words is "three hundred eighty-nine million, nineteen thousand, four hundred".