388830634 has 8 divisors (see below), whose sum is σ = 597471588. Its totient is φ = 189673440.

The previous prime is 388830619. The next prime is 388830643. The reversal of 388830634 is 436038883.

It can be written as a sum of positive squares in 2 ways, for example, as 319158225 + 69672409 = 17865^2 + 8347^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2370837 + ... + 2371000.

Almost surely, 2^388830634 is an apocalyptic number.

388830634 is a deficient number, since it is larger than the sum of its proper divisors (208640954).

388830634 is a wasteful number, since it uses less digits than its factorization.

388830634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741880.

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 388830634 is about 19718.7888573310. The cubic root of 388830634 is about 729.8834079135.

The spelling of 388830634 in words is "three hundred eighty-eight million, eight hundred thirty thousand, six hundred thirty-four".