389480386 has 4 divisors (see below), whose sum is σ = 584220582. Its totient is φ = 194740192.

The previous prime is 389480383. The next prime is 389480393. The reversal of 389480386 is 683084983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 683084983 = 7 ⋅97583569.

It can be written as a sum of positive squares in only one way, i.e., 353252025 + 36228361 = 18795^2 + 6019^2 .

It is not an unprimeable number, because it can be changed into a prime (389480381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97370095 + ... + 97370098.

Almost surely, 2^389480386 is an apocalyptic number.

389480386 is a deficient number, since it is larger than the sum of its proper divisors (194740196).

389480386 is a wasteful number, since it uses less digits than its factorization.

389480386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194740195.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 389480386 is about 19735.2574343483. The cubic root of 389480386 is about 730.2897367429.

The spelling of 389480386 in words is "three hundred eighty-nine million, four hundred eighty thousand, three hundred eighty-six".