389158690 has 16 divisors (see below), whose sum is σ = 712359360. Its totient is φ = 153024880.

The previous prime is 389158669. The next prime is 389158691. The reversal of 389158690 is 96851983.

It is a super-2 number, since 2×389158690² = 302888972005032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389158691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329206 + ... + 330385.

It is an arithmetic number, because the mean of its divisors is an integer number (44522460).

Almost surely, 2^389158690 is an apocalyptic number.

389158690 is a deficient number, since it is larger than the sum of its proper divisors (323200670).

389158690 is a wasteful number, since it uses less digits than its factorization.

389158690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659657.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 389158690 is about 19727.1054643098. The cubic root of 389158690 is about 730.0886175024.

The spelling of 389158690 in words is "three hundred eighty-nine million, one hundred fifty-eight thousand, six hundred ninety".