49944239 has 4 divisors (see below), whose sum is σ = 50029056. Its totient is φ = 49859424.

The previous prime is 49944227. The next prime is 49944253. The reversal of 49944239 is 93244994.

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

It is a cyclic number.

It is not a de Polignac number, because 49944239 - 2⁸ = 49943983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49944239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49944269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41519 + ... + 42704.

It is an arithmetic number, because the mean of its divisors is an integer number (12507264).

Almost surely, 2^49944239 is an apocalyptic number.

49944239 is a deficient number, since it is larger than the sum of its proper divisors (84817).

49944239 is an equidigital number, since it uses as much as digits as its factorization.

49944239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84816.

The product of its digits is 279936, while the sum is 44.

The square root of 49944239 is about 7067.1238138298. The cubic root of 49944239 is about 368.2661487357.

The spelling of 49944239 in words is "forty-nine million, nine hundred forty-four thousand, two hundred thirty-nine".