386681332 has 12 divisors (see below), whose sum is σ = 693197316. Its totient is φ = 188624960.

The previous prime is 386681329. The next prime is 386681357. The reversal of 386681332 is 233186683.

It can be written as a sum of positive squares in 2 ways, for example, as 169885156 + 216796176 = 13034^2 + 14724^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178743 + ... + 1179070.

It is an arithmetic number, because the mean of its divisors is an integer number (57766443).

Almost surely, 2^386681332 is an apocalyptic number.

It is an amenable number.

386681332 is a deficient number, since it is larger than the sum of its proper divisors (306515984).

386681332 is a wasteful number, since it uses less digits than its factorization.

386681332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357858 (or 2357856 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 386681332 is about 19664.2145024916. The cubic root of 386681332 is about 728.5360867425.

It can be divided in two parts, 38668 and 1332, that added together give a square (40000 = 200²).

The spelling of 386681332 in words is "three hundred eighty-six million, six hundred eighty-one thousand, three hundred thirty-two".