39842985 has 96 divisors (see below), whose sum is σ = 84172032. Its totient is φ = 15667200.

The previous prime is 39842953. The next prime is 39843007. The reversal of 39842985 is 58924893.

It is not a de Polignac number, because 39842985 - 2⁵ = 39842953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 394435 + ... + 394535.

It is an arithmetic number, because the mean of its divisors is an integer number (876792).

Almost surely, 2^39842985 is an apocalyptic number.

39842985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39842985 is an abundant number, since it is smaller than the sum of its proper divisors (44329047).

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

39842985 is a wasteful number, since it uses less digits than its factorization.

39842985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 146 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 39842985 is about 6312.1299891558. The cubic root of 39842985 is about 341.5471160823.

The spelling of 39842985 in words is "thirty-nine million, eight hundred forty-two thousand, nine hundred eighty-five".