39950243 has 4 divisors (see below), whose sum is σ = 39987888. Its totient is φ = 39912600.

The previous prime is 39950237. The next prime is 39950299. The reversal of 39950243 is 34205993.

39950243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39950243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39950203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17183 + ... + 19368.

It is an arithmetic number, because the mean of its divisors is an integer number (9996972).

Almost surely, 2^39950243 is an apocalyptic number.

39950243 is a deficient number, since it is larger than the sum of its proper divisors (37645).

39950243 is a wasteful number, since it uses less digits than its factorization.

39950243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37644.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 39950243 is about 6320.6204600498. The cubic root of 39950243 is about 341.8533250409.

The spelling of 39950243 in words is "thirty-nine million, nine hundred fifty thousand, two hundred forty-three".