38440666 has 8 divisors (see below), whose sum is σ = 62902944. Its totient is φ = 17473020.

The previous prime is 38440663. The next prime is 38440687. The reversal of 38440666 is 66604483.

38440666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (38440663) 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, 873630 + ... + 873673.

It is an arithmetic number, because the mean of its divisors is an integer number (7862868).

Almost surely, 2^38440666 is an apocalyptic number.

38440666 is a deficient number, since it is larger than the sum of its proper divisors (24462278).

38440666 is a wasteful number, since it uses less digits than its factorization.

38440666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747316.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 38440666 is about 6200.0537094448. The cubic root of 38440666 is about 337.4921179686.

The spelling of 38440666 in words is "thirty-eight million, four hundred forty thousand, six hundred sixty-six".