39440842 has 32 divisors (see below), whose sum is σ = 69144192. Its totient is φ = 16525824.

The previous prime is 39440813. The next prime is 39440857. The reversal of 39440842 is 24804493.

39440842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39440798 and 39440807.

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 15 ways as a sum of consecutive naturals, for example, 169158 + ... + 169390.

It is an arithmetic number, because the mean of its divisors is an integer number (2160756).

Almost surely, 2^39440842 is an apocalyptic number.

39440842 is a deficient number, since it is larger than the sum of its proper divisors (29703350).

39440842 is a wasteful number, since it uses less digits than its factorization.

39440842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 39440842 is about 6280.1944237420. The cubic root of 39440842 is about 340.3941277260.

The spelling of 39440842 in words is "thirty-nine million, four hundred forty thousand, eight hundred forty-two".