386756634 has 64 divisors (see below), whose sum is σ = 875191680. Its totient is φ = 112907520.

The previous prime is 386756621. The next prime is 386756639. The reversal of 386756634 is 436657683.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (386756639) 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 31 ways as a sum of consecutive naturals, for example, 265452 + ... + 266904.

It is an arithmetic number, because the mean of its divisors is an integer number (13674870).

Almost surely, 2^386756634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386756634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437595840).

386756634 is an abundant number, since it is smaller than the sum of its proper divisors (488435046).

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

386756634 is a wasteful number, since it uses less digits than its factorization.

386756634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its digits is 2177280, while the sum is 48.

The square root of 386756634 is about 19666.1291056476. The cubic root of 386756634 is about 728.5833751762.

The spelling of 386756634 in words is "three hundred eighty-six million, seven hundred fifty-six thousand, six hundred thirty-four".