38449823 has 4 divisors (see below), whose sum is σ = 38526768. Its totient is φ = 38372880.

The previous prime is 38449799. The next prime is 38449867. The reversal of 38449823 is 32894483.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32894483 = 157 ⋅209519.

It is a cyclic number.

It is not a de Polignac number, because 38449823 - 2¹² = 38445727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38440823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37718 + ... + 38723.

It is an arithmetic number, because the mean of its divisors is an integer number (9631692).

Almost surely, 2^38449823 is an apocalyptic number.

38449823 is a deficient number, since it is larger than the sum of its proper divisors (76945).

38449823 is an equidigital number, since it uses as much as digits as its factorization.

38449823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76944.

The product of its digits is 165888, while the sum is 41.

The square root of 38449823 is about 6200.7921268173. The cubic root of 38449823 is about 337.5189139835.

The spelling of 38449823 in words is "thirty-eight million, four hundred forty-nine thousand, eight hundred twenty-three".