389323746 has 80 divisors (see below), whose sum is σ = 1010870784. Its totient is φ = 109688256.

The previous prime is 389323729. The next prime is 389323757. The reversal of 389323746 is 647323983.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 80431 + ... + 85133.

Almost surely, 2^389323746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389323746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505435392).

389323746 is an abundant number, since it is smaller than the sum of its proper divisors (621547038).

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

389323746 is a wasteful number, since it uses less digits than its factorization.

389323746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4797 (or 4788 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 389323746 is about 19731.2885032884. The cubic root of 389323746 is about 730.1918217368.

The spelling of 389323746 in words is "three hundred eighty-nine million, three hundred twenty-three thousand, seven hundred forty-six".