38440829 has 4 divisors (see below), whose sum is σ = 43932384. Its totient is φ = 32949276.

The previous prime is 38440823. The next prime is 38440849. The reversal of 38440829 is 92804483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38440829 - 2⁴ = 38440813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38440792 and 38440801.

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, 2745767 + ... + 2745780.

It is an arithmetic number, because the mean of its divisors is an integer number (10983096).

Almost surely, 2^38440829 is an apocalyptic number.

It is an amenable number.

38440829 is a deficient number, since it is larger than the sum of its proper divisors (5491555).

38440829 is an equidigital number, since it uses as much as digits as its factorization.

38440829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491554.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 38440829 is about 6200.0668544783. The cubic root of 38440829 is about 337.4925949907.

The spelling of 38440829 in words is "thirty-eight million, four hundred forty thousand, eight hundred twenty-nine".