39490506 has 24 divisors (see below), whose sum is σ = 93341664. Its totient is φ = 11966760.

The previous prime is 39490483. The next prime is 39490511. The reversal of 39490506 is 60509493.

39490506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 99526 + ... + 99921.

It is an arithmetic number, because the mean of its divisors is an integer number (3889236).

Almost surely, 2^39490506 is an apocalyptic number.

39490506 is an abundant number, since it is smaller than the sum of its proper divisors (53851158).

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

39490506 is a wasteful number, since it uses less digits than its factorization.

39490506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199466 (or 199463 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 39490506 is about 6284.1471975122. The cubic root of 39490506 is about 340.5369428242.

Adding to 39490506 its reverse (60509493), we get a palindrome (99999999).

It can be divided in two parts, 39 and 490506, that added together give a triangular number (490545 = T₉₉₀).

The spelling of 39490506 in words is "thirty-nine million, four hundred ninety thousand, five hundred six".