38413823 has 4 divisors (see below), whose sum is σ = 43901520. Its totient is φ = 32926128.

The previous prime is 38413819. The next prime is 38413831. The reversal of 38413823 is 32831483.

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: 32831483 = 691 ⋅47513.

It is a cyclic number.

It is not a de Polignac number, because 38413823 - 2² = 38413819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38413823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38413853) 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, 2743838 + ... + 2743851.

It is an arithmetic number, because the mean of its divisors is an integer number (10975380).

Almost surely, 2^38413823 is an apocalyptic number.

38413823 is a deficient number, since it is larger than the sum of its proper divisors (5487697).

38413823 is an equidigital number, since it uses as much as digits as its factorization.

38413823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487696.

The product of its digits is 13824, while the sum is 32.

The square root of 38413823 is about 6197.8885920933. Note that the first 3 decimals coincide. The cubic root of 38413823 is about 337.4135431036.

The spelling of 38413823 in words is "thirty-eight million, four hundred thirteen thousand, eight hundred twenty-three".