39665050 has 12 divisors (see below), whose sum is σ = 73777086. Its totient is φ = 15866000.

The previous prime is 39665047. The next prime is 39665057. The reversal of 39665050 is 5056693.

It can be written as a sum of positive squares in 3 ways, for example, as 15468489 + 24196561 = 3933^2 + 4919^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39664997 and 39665015.

It is not an unprimeable number, because it can be changed into a prime (39665057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 396601 + ... + 396700.

Almost surely, 2^39665050 is an apocalyptic number.

39665050 is a deficient number, since it is larger than the sum of its proper divisors (34112036).

39665050 is a wasteful number, since it uses less digits than its factorization.

39665050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793313 (or 793308 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 39665050 is about 6298.0195299792. The cubic root of 39665050 is about 341.0379182873.

The spelling of 39665050 in words is "thirty-nine million, six hundred sixty-five thousand, fifty".