389980366 has 4 divisors (see below), whose sum is σ = 584970552. Its totient is φ = 194990182.

The previous prime is 389980303. The next prime is 389980379. The reversal of 389980366 is 663089983.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97495090 + ... + 97495093.

It is an arithmetic number, because the mean of its divisors is an integer number (146242638).

Almost surely, 2^389980366 is an apocalyptic number.

389980366 is a deficient number, since it is larger than the sum of its proper divisors (194990186).

389980366 is a wasteful number, since it uses less digits than its factorization.

389980366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194990185.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 389980366 is about 19747.9205487565. The cubic root of 389980366 is about 730.6020966174.

The spelling of 389980366 in words is "three hundred eighty-nine million, nine hundred eighty thousand, three hundred sixty-six".