389668970 has 16 divisors (see below), whose sum is σ = 703420200. Its totient is φ = 155419584.

The previous prime is 389668933. The next prime is 389668973. The reversal of 389668970 is 79866983.

It can be written as a sum of positive squares in 4 ways, for example, as 332953009 + 56715961 = 18247^2 + 7531^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (389668973) 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, 52337 + ... + 59316.

Almost surely, 2^389668970 is an apocalyptic number.

389668970 is a deficient number, since it is larger than the sum of its proper divisors (313751230).

389668970 is a wasteful number, since it uses less digits than its factorization.

389668970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112009.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 389668970 is about 19740.0347010840. The cubic root of 389668970 is about 730.4075849862.

The spelling of 389668970 in words is "three hundred eighty-nine million, six hundred sixty-eight thousand, nine hundred seventy".