39042605 has 16 divisors (see below), whose sum is σ = 53848704. Its totient is φ = 26619840.

The previous prime is 39042599. The next prime is 39042607. The reversal of 39042605 is 50624093.

It is not a de Polignac number, because 39042605 - 2⁶ = 39042541 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39042607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3254 + ... + 9416.

It is an arithmetic number, because the mean of its divisors is an integer number (3365544).

Almost surely, 2^39042605 is an apocalyptic number.

39042605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39042605 is a deficient number, since it is larger than the sum of its proper divisors (14806099).

39042605 is a wasteful number, since it uses less digits than its factorization.

39042605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 39042605 is about 6248.4081972931. The cubic root of 39042605 is about 339.2445887312.

Adding to 39042605 its reverse (50624093), we get a palindrome (89666698).

The spelling of 39042605 in words is "thirty-nine million, forty-two thousand, six hundred five".