389253876 has 48 divisors (see below), whose sum is σ = 995924160. Its totient is φ = 117349120.

The previous prime is 389253833. The next prime is 389253881. The reversal of 389253876 is 678352983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18520 + ... + 33488.

It is an arithmetic number, because the mean of its divisors is an integer number (20748420).

Almost surely, 2^389253876 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 389253876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497962080).

389253876 is an abundant number, since it is smaller than the sum of its proper divisors (606670284).

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

389253876 is a wasteful number, since it uses less digits than its factorization.

389253876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15184 (or 15182 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 389253876 is about 19729.5178856454. The cubic root of 389253876 is about 730.1481378230.

The spelling of 389253876 in words is "three hundred eighty-nine million, two hundred fifty-three thousand, eight hundred seventy-six".