39444618 has 16 divisors (see below), whose sum is σ = 80001216. Its totient is φ = 12962880.

The previous prime is 39444599. The next prime is 39444623. The reversal of 39444618 is 81644493.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45871 + ... + 46722.

It is an arithmetic number, because the mean of its divisors is an integer number (5000076).

Almost surely, 2^39444618 is an apocalyptic number.

39444618 is an abundant number, since it is smaller than the sum of its proper divisors (40556598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39444618 is a wasteful number, since it uses less digits than its factorization.

39444618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92669.

The product of its digits is 82944, while the sum is 39.

The square root of 39444618 is about 6280.4950441824. The cubic root of 39444618 is about 340.4049903001.

The spelling of 39444618 in words is "thirty-nine million, four hundred forty-four thousand, six hundred eighteen".