39912044 has 24 divisors (see below), whose sum is σ = 71124480. Its totient is φ = 19594064.

The previous prime is 39912031. The next prime is 39912049. The reversal of 39912044 is 44021993.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39912044.

It is not an unprimeable number, because it can be changed into a prime (39912049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79097 + ... + 79599.

It is an arithmetic number, because the mean of its divisors is an integer number (2963520).

Almost surely, 2^39912044 is an apocalyptic number.

It is an amenable number.

39912044 is a deficient number, since it is larger than the sum of its proper divisors (31212436).

39912044 is a wasteful number, since it uses less digits than its factorization.

39912044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 39912044 is about 6317.5979612508. The cubic root of 39912044 is about 341.7443343031.

The spelling of 39912044 in words is "thirty-nine million, nine hundred twelve thousand, forty-four".