38390123 has 4 divisors (see below), whose sum is σ = 38436720. Its totient is φ = 38343528.

The previous prime is 38390087. The next prime is 38390137. The reversal of 38390123 is 32109383.

38390123 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 38390123 - 2⁸ = 38389867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38390153) 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, 22040 + ... + 23717.

It is an arithmetic number, because the mean of its divisors is an integer number (9609180).

Almost surely, 2^38390123 is an apocalyptic number.

38390123 is a deficient number, since it is larger than the sum of its proper divisors (46597).

38390123 is an equidigital number, since it uses as much as digits as its factorization.

38390123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46596.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 38390123 is about 6195.9763556682. The cubic root of 38390123 is about 337.3441379999.

The spelling of 38390123 in words is "thirty-eight million, three hundred ninety thousand, one hundred twenty-three".