38418723 has 12 divisors (see below), whose sum is σ = 63421488. Its totient is φ = 21953520.

The previous prime is 38418701. The next prime is 38418733. The reversal of 38418723 is 32781483.

It is not a de Polignac number, because 38418723 - 2¹⁰ = 38417699 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38418733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304848 + ... + 304973.

It is an arithmetic number, because the mean of its divisors is an integer number (5285124).

Almost surely, 2^38418723 is an apocalyptic number.

38418723 is a deficient number, since it is larger than the sum of its proper divisors (25002765).

38418723 is a wasteful number, since it uses less digits than its factorization.

38418723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609834 (or 609831 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 38418723 is about 6198.2838753965. The cubic root of 38418723 is about 337.4278891205.

The spelling of 38418723 in words is "thirty-eight million, four hundred eighteen thousand, seven hundred twenty-three".