389009734 has 8 divisors (see below), whose sum is σ = 597084840. Its totient is φ = 189981456.

The previous prime is 389009729. The next prime is 389009767. The reversal of 389009734 is 437900983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261599 + ... + 2261770.

It is an arithmetic number, because the mean of its divisors is an integer number (74635605).

Almost surely, 2^389009734 is an apocalyptic number.

389009734 is a deficient number, since it is larger than the sum of its proper divisors (208075106).

389009734 is a wasteful number, since it uses less digits than its factorization.

389009734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523414.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 389009734 is about 19723.3296884679. The cubic root of 389009734 is about 729.9954550289.

The spelling of 389009734 in words is "three hundred eighty-nine million, nine thousand, seven hundred thirty-four".