39439146 has 16 divisors (see below), whose sum is σ = 79003584. Its totient is φ = 13125504.

The previous prime is 39439139. The next prime is 39439177. The reversal of 39439146 is 64193493.

39439146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×39439146³ (a number of 24 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 846 + ... + 8921.

It is an arithmetic number, because the mean of its divisors is an integer number (4937724).

Almost surely, 2^39439146 is an apocalyptic number.

39439146 is an abundant number, since it is smaller than the sum of its proper divisors (39564438).

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

39439146 is a wasteful number, since it uses less digits than its factorization.

39439146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10445.

The product of its digits is 69984, while the sum is 39.

The square root of 39439146 is about 6280.0593946236. The cubic root of 39439146 is about 340.3892485476.

The spelling of 39439146 in words is "thirty-nine million, four hundred thirty-nine thousand, one hundred forty-six".