389999998 has 8 divisors (see below), whose sum is σ = 585123840. Its totient is φ = 194958720.

The previous prime is 389999989. The next prime is 389999999. The reversal of 389999998 is 899999983.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 389999998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389999999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7038 + ... + 28801.

It is an arithmetic number, because the mean of its divisors is an integer number (73140480).

Almost surely, 2^389999998 is an apocalyptic number.

389999998 is a deficient number, since it is larger than the sum of its proper divisors (195123842).

389999998 is a wasteful number, since it uses less digits than its factorization.

389999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41282.

The product of its digits is 102036672, while the sum is 73.

The square root of 389999998 is about 19748.4176074945. The cubic root of 389999998 is about 730.6143561574.

The spelling of 389999998 in words is "three hundred eighty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".