38418923 has 2 divisors, whose sum is σ = 38418924. Its totient is φ = 38418922.

The previous prime is 38418917. The next prime is 38418973. The reversal of 38418923 is 32981483.

It is a weak prime.

It is an emirp because it is prime and its reverse (32981483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38418923 - 2⁶ = 38418859 is a prime.

It is not a weakly prime, because it can be changed into another prime (38418973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19209461 + 19209462.

It is an arithmetic number, because the mean of its divisors is an integer number (19209462).

Almost surely, 2^38418923 is an apocalyptic number.

38418923 is a deficient number, since it is larger than the sum of its proper divisors (1).

38418923 is an equidigital number, since it uses as much as digits as its factorization.

38418923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 38418923 is about 6198.3000088734. The cubic root of 38418923 is about 337.4284746463.

The spelling of 38418923 in words is "thirty-eight million, four hundred eighteen thousand, nine hundred twenty-three".