386702020 has 12 divisors (see below), whose sum is σ = 812074284. Its totient is φ = 154680800.

The previous prime is 386702011. The next prime is 386702023. The reversal of 386702020 is 20207683.

It can be written as a sum of positive squares in 2 ways, for example, as 290975364 + 95726656 = 17058^2 + 9784^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 386702020.

It is not an unprimeable number, because it can be changed into a prime (386702023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9667531 + ... + 9667570.

It is an arithmetic number, because the mean of its divisors is an integer number (67672857).

Almost surely, 2^386702020 is an apocalyptic number.

It is an amenable number.

386702020 is an abundant number, since it is smaller than the sum of its proper divisors (425372264).

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

386702020 is a wasteful number, since it uses less digits than its factorization.

386702020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19335110 (or 19335108 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 386702020 is about 19664.7405271466. The cubic root of 386702020 is about 728.5490790823.

The spelling of 386702020 in words is "three hundred eighty-six million, seven hundred two thousand, twenty".