39399849 has 12 divisors (see below), whose sum is σ = 56971200. Its totient is φ = 26238744.

The previous prime is 39399847. The next prime is 39399859. The reversal of 39399849 is 94899393.

It is not a de Polignac number, because 39399849 - 2¹ = 39399847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39399795 and 39399804.

It is not an unprimeable number, because it can be changed into a prime (39399847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10212 + ... + 13530.

It is an arithmetic number, because the mean of its divisors is an integer number (4747600).

Almost surely, 2^39399849 is an apocalyptic number.

It is an amenable number.

39399849 is a deficient number, since it is larger than the sum of its proper divisors (17571351).

39399849 is a wasteful number, since it uses less digits than its factorization.

39399849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644 (or 4641 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 39399849 is about 6276.9299024284. The cubic root of 39399849 is about 340.2761568370.

The spelling of 39399849 in words is "thirty-nine million, three hundred ninety-nine thousand, eight hundred forty-nine".