386383720 has 16 divisors (see below), whose sum is σ = 869363460. Its totient is φ = 154553472.

The previous prime is 386383717. The next prime is 386383729. The reversal of 386383720 is 27383683.

It can be written as a sum of positive squares in 2 ways, for example, as 332478756 + 53904964 = 18234^2 + 7342^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 9659593 = 386383720 / (3 + 8 + 6 + 3 + 8 + 3 + 7 + 2 + 0).

It is not an unprimeable number, because it can be changed into a prime (386383729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4829757 + ... + 4829836.

Almost surely, 2^386383720 is an apocalyptic number.

It is an amenable number.

386383720 is an abundant number, since it is smaller than the sum of its proper divisors (482979740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

386383720 is a wasteful number, since it uses less digits than its factorization.

386383720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9659604 (or 9659600 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 386383720 is about 19656.6456955402. The cubic root of 386383720 is about 728.3491311336.

The spelling of 386383720 in words is "three hundred eighty-six million, three hundred eighty-three thousand, seven hundred twenty".