386634730 has 8 divisors (see below), whose sum is σ = 695942532. Its totient is φ = 154653888.

The previous prime is 386634713. The next prime is 386634739. The reversal of 386634730 is 37436683.

It can be written as a sum of positive squares in 2 ways, for example, as 357550281 + 29084449 = 18909^2 + 5393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (386634739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19331727 + ... + 19331746.

Almost surely, 2^386634730 is an apocalyptic number.

386634730 is a deficient number, since it is larger than the sum of its proper divisors (309307802).

386634730 is a wasteful number, since it uses less digits than its factorization.

386634730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38663480.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 386634730 is about 19663.0295224312. The cubic root of 386634730 is about 728.5068183675.

The spelling of 386634730 in words is "three hundred eighty-six million, six hundred thirty-four thousand, seven hundred thirty".