38729330 has 8 divisors (see below), whose sum is σ = 69712812. Its totient is φ = 15491728.

The previous prime is 38729303. The next prime is 38729351. The reversal of 38729330 is 3392783.

It can be written as a sum of positive squares in 2 ways, for example, as 35557369 + 3171961 = 5963^2 + 1781^2 .

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

It is a super-2 number, since 2×38729330² = 2999922004497800, which contains 22 as substring.

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, 1936457 + ... + 1936476.

Almost surely, 2^38729330 is an apocalyptic number.

38729330 is a deficient number, since it is larger than the sum of its proper divisors (30983482).

38729330 is a wasteful number, since it uses less digits than its factorization.

38729330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872940.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 38729330 is about 6223.2893231795. The cubic root of 38729330 is about 338.3347930945.

The spelling of 38729330 in words is "thirty-eight million, seven hundred twenty-nine thousand, three hundred thirty".