389933676 has 120 divisors (see below), whose sum is σ = 1142474256. Its totient is φ = 114929280.

The previous prime is 389933671. The next prime is 389933689. The reversal of 389933676 is 676339983.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389933671) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 130390 + ... + 133346.

Almost surely, 2^389933676 is an apocalyptic number.

389933676 is a gapful number since it is divisible by the number (36) 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 389933676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571237128).

389933676 is an abundant number, since it is smaller than the sum of its proper divisors (752540580).

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

389933676 is a wasteful number, since it uses less digits than its factorization.

389933676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021 (or 3010 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 54.

The square root of 389933676 is about 19746.7383635880. The cubic root of 389933676 is about 730.5729385911.

The spelling of 389933676 in words is "three hundred eighty-nine million, nine hundred thirty-three thousand, six hundred seventy-six".