38823231 has 4 divisors (see below), whose sum is σ = 51764312. Its totient is φ = 25882152.

The previous prime is 38823229. The next prime is 38823247. The reversal of 38823231 is 13232883.

38823231 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, and also an emirpimes, since its reverse is a distinct semiprime: 13232883 = 3 ⋅4410961.

It is not a de Polignac number, because 38823231 - 2¹ = 38823229 is a prime.

It is a super-2 number, since 2×38823231² = 3014486530558722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38823221) 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, 6470536 + ... + 6470541.

It is an arithmetic number, because the mean of its divisors is an integer number (12941078).

Almost surely, 2^38823231 is an apocalyptic number.

38823231 is a deficient number, since it is larger than the sum of its proper divisors (12941081).

38823231 is a wasteful number, since it uses less digits than its factorization.

38823231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12941080.

The product of its digits is 6912, while the sum is 30.

The square root of 38823231 is about 6230.8290780602. The cubic root of 38823231 is about 338.6080083728.

The spelling of 38823231 in words is "thirty-eight million, eight hundred twenty-three thousand, two hundred thirty-one".