38512939 has 4 divisors (see below), whose sum is σ = 40778424. Its totient is φ = 36247456.

The previous prime is 38512933. The next prime is 38512961. The reversal of 38512939 is 93921583.

38512939 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 38512939 - 2⁷ = 38512811 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38512933) 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, 1132717 + ... + 1132750.

It is an arithmetic number, because the mean of its divisors is an integer number (10194606).

Almost surely, 2^38512939 is an apocalyptic number.

38512939 is a deficient number, since it is larger than the sum of its proper divisors (2265485).

38512939 is a wasteful number, since it uses less digits than its factorization.

38512939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265484.

The product of its digits is 58320, while the sum is 40.

The square root of 38512939 is about 6205.8793897400. The cubic root of 38512939 is about 337.7034939235.

The spelling of 38512939 in words is "thirty-eight million, five hundred twelve thousand, nine hundred thirty-nine".