39745849 has 16 divisors (see below), whose sum is σ = 46872000. Its totient is φ = 33226560.

The previous prime is 39745801. The next prime is 39745873. The reversal of 39745849 is 94854793.

It is a cyclic number.

It is not a de Polignac number, because 39745849 - 2⁷ = 39745721 is a prime.

It is a Duffinian number.

Its product of digits (1088640) is a multiple of the sum of its prime divisors (1080).

It is not an unprimeable number, because it can be changed into a prime (39745049) 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, 71079 + ... + 71635.

It is an arithmetic number, because the mean of its divisors is an integer number (2929500).

Almost surely, 2^39745849 is an apocalyptic number.

It is an amenable number.

39745849 is a deficient number, since it is larger than the sum of its proper divisors (7126151).

39745849 is a wasteful number, since it uses less digits than its factorization.

39745849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080.

The product of its digits is 1088640, while the sum is 49.

The square root of 39745849 is about 6304.4309021513. The cubic root of 39745849 is about 341.2693296801.

The spelling of 39745849 in words is "thirty-nine million, seven hundred forty-five thousand, eight hundred forty-nine".