39489236 has 6 divisors (see below), whose sum is σ = 69106170. Its totient is φ = 19744616.

The previous prime is 39489227. The next prime is 39489287. The reversal of 39489236 is 63298493.

39489236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 1123600 = 6194^2 + 1060^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 4936151 + ... + 4936158.

It is an arithmetic number, because the mean of its divisors is an integer number (11517695).

Almost surely, 2^39489236 is an apocalyptic number.

It is an amenable number.

39489236 is a deficient number, since it is larger than the sum of its proper divisors (29616934).

39489236 is a wasteful number, since it uses less digits than its factorization.

39489236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9872313 (or 9872311 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 39489236 is about 6284.0461487803. The cubic root of 39489236 is about 340.5332922713.

The spelling of 39489236 in words is "thirty-nine million, four hundred eighty-nine thousand, two hundred thirty-six".