389422079 has 8 divisors (see below), whose sum is σ = 392841600. Its totient is φ = 386013600.

The previous prime is 389422067. The next prime is 389422087. The reversal of 389422079 is 970224983.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389422079 is a prime.

It is a super-2 number, since 2×389422079² = 303299111225364482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389422379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78194 + ... + 83024.

It is an arithmetic number, because the mean of its divisors is an integer number (49105200).

Almost surely, 2^389422079 is an apocalyptic number.

389422079 is a deficient number, since it is larger than the sum of its proper divisors (3419521).

389422079 is a wasteful number, since it uses less digits than its factorization.

389422079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 389422079 is about 19733.7801497838. The cubic root of 389422079 is about 730.2532923500.

The spelling of 389422079 in words is "three hundred eighty-nine million, four hundred twenty-two thousand, seventy-nine".