38219923 has 16 divisors (see below), whose sum is σ = 44593920. Its totient is φ = 32082336.

The previous prime is 38219917. The next prime is 38219947. The reversal of 38219923 is 32991283.

It is a cyclic number.

It is not a de Polignac number, because 38219923 - 2⁵ = 38219891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38219323) 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 15 ways as a sum of consecutive naturals, for example, 91008 + ... + 91426.

It is an arithmetic number, because the mean of its divisors is an integer number (2787120).

Almost surely, 2^38219923 is an apocalyptic number.

38219923 is a deficient number, since it is larger than the sum of its proper divisors (6373997).

38219923 is a wasteful number, since it uses less digits than its factorization.

38219923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666.

The product of its digits is 23328, while the sum is 37.

The square root of 38219923 is about 6182.2263789027. The cubic root of 38219923 is about 336.8448686798.

It can be divided in two parts, 38 and 219923, that added together give a square (219961 = 469²).

The spelling of 38219923 in words is "thirty-eight million, two hundred nineteen thousand, nine hundred twenty-three".