39749285 has 32 divisors (see below), whose sum is σ = 52531200. Its totient is φ = 28788480.

The previous prime is 39749261. The next prime is 39749293. The reversal of 39749285 is 58294793.

It is a happy number.

39749285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39749285 - 2⁸ = 39749029 is a prime.

It is a super-2 number, since 2×39749285² = 3160011316022450, which contains 22 as substring.

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 in 31 ways as a sum of consecutive naturals, for example, 166196 + ... + 166434.

It is an arithmetic number, because the mean of its divisors is an integer number (1641600).

Almost surely, 2^39749285 is an apocalyptic number.

It is an amenable number.

39749285 is a deficient number, since it is larger than the sum of its proper divisors (12781915).

39749285 is a wasteful number, since it uses less digits than its factorization.

39749285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

The product of its digits is 544320, while the sum is 47.

The square root of 39749285 is about 6304.7034030159. The cubic root of 39749285 is about 341.2791635593.

The spelling of 39749285 in words is "thirty-nine million, seven hundred forty-nine thousand, two hundred eighty-five".