38729630 has 8 divisors (see below), whose sum is σ = 69713352. Its totient is φ = 15491848.

The previous prime is 38729629. The next prime is 38729659. The reversal of 38729630 is 3692783.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1936472 + ... + 1936491.

It is an arithmetic number, because the mean of its divisors is an integer number (8714169).

Almost surely, 2^38729630 is an apocalyptic number.

38729630 is a deficient number, since it is larger than the sum of its proper divisors (30983722).

38729630 is a wasteful number, since it uses less digits than its factorization.

38729630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872970.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 38729630 is about 6223.3134261421. The cubic root of 38729630 is about 338.3356666802.

The spelling of 38729630 in words is "thirty-eight million, seven hundred twenty-nine thousand, six hundred thirty".