38930939 has 4 divisors (see below), whose sum is σ = 38977224. Its totient is φ = 38884656.

The previous prime is 38930929. The next prime is 38931007. The reversal of 38930939 is 93903983.

38930939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38930939 - 2⁴ = 38930923 is a prime.

It is a super-2 number, since 2×38930939² = 3031236022843442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38930939.

It is not an unprimeable number, because it can be changed into a prime (38930909) 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 3 ways as a sum of consecutive naturals, for example, 21857 + ... + 23570.

It is an arithmetic number, because the mean of its divisors is an integer number (9744306).

Almost surely, 2^38930939 is an apocalyptic number.

38930939 is a deficient number, since it is larger than the sum of its proper divisors (46285).

38930939 is an equidigital number, since it uses as much as digits as its factorization.

38930939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46284.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 38930939 is about 6239.4662431974. The cubic root of 38930939 is about 338.9208547032.

The spelling of 38930939 in words is "thirty-eight million, nine hundred thirty thousand, nine hundred thirty-nine".