386020520 has 16 divisors (see below), whose sum is σ = 868546260. Its totient is φ = 154408192.

The previous prime is 386020517. The next prime is 386020529. The reversal of 386020520 is 25020683.

It can be written as a sum of positive squares in 2 ways, for example, as 357739396 + 28281124 = 18914^2 + 5318^2 .

It is a super-2 number, since 2×386020520² = 298023683722140800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 386020520.

It is not an unprimeable number, because it can be changed into a prime (386020529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4825217 + ... + 4825296.

Almost surely, 2^386020520 is an apocalyptic number.

It is an amenable number.

386020520 is an abundant number, since it is smaller than the sum of its proper divisors (482525740).

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

386020520 is a wasteful number, since it uses less digits than its factorization.

386020520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9650524 (or 9650520 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 386020520 is about 19647.4049176984. The cubic root of 386020520 is about 728.1208439655.

The spelling of 386020520 in words is "three hundred eighty-six million, twenty thousand, five hundred twenty".