38005805 has 8 divisors (see below), whose sum is σ = 47179800. Its totient is φ = 29356096.

The previous prime is 38005789. The next prime is 38005813. The reversal of 38005805 is 50850083.

38005805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3736489 + 34269316 = 1933^2 + 5854^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38005805 - 2⁴ = 38005789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 130910 + ... + 131199.

It is an arithmetic number, because the mean of its divisors is an integer number (5897475).

Almost surely, 2^38005805 is an apocalyptic number.

It is an amenable number.

38005805 is a deficient number, since it is larger than the sum of its proper divisors (9173995).

38005805 is a wasteful number, since it uses less digits than its factorization.

38005805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262143.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 38005805 is about 6164.8848326631. The cubic root of 38005805 is about 336.2146593409.

Adding to 38005805 its reverse (50850083), we get a palindrome (88855888).

The spelling of 38005805 in words is "thirty-eight million, five thousand, eight hundred five".