39442806 has 24 divisors (see below), whose sum is σ = 92033760. Its totient is φ = 12136176.

The previous prime is 39442801. The next prime is 39442807. The reversal of 39442806 is 60824493.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39442801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84046 + ... + 84513.

It is an arithmetic number, because the mean of its divisors is an integer number (3834740).

Almost surely, 2^39442806 is an apocalyptic number.

39442806 is an abundant number, since it is smaller than the sum of its proper divisors (52590954).

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

39442806 is a wasteful number, since it uses less digits than its factorization.

39442806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168580 (or 168577 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 39442806 is about 6280.3507863813. The cubic root of 39442806 is about 340.3997777319.

The spelling of 39442806 in words is "thirty-nine million, four hundred forty-two thousand, eight hundred six".