49440447 has 24 divisors (see below), whose sum is σ = 84433440. Its totient is φ = 27276480.

The previous prime is 49440431. The next prime is 49440449. The reversal of 49440447 is 74404494.

It is not a de Polignac number, because 49440447 - 2⁴ = 49440431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49440449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11704 + ... + 15357.

It is an arithmetic number, because the mean of its divisors is an integer number (3518060).

Almost surely, 2^49440447 is an apocalyptic number.

49440447 is a deficient number, since it is larger than the sum of its proper divisors (34992993).

49440447 is a wasteful number, since it uses less digits than its factorization.

49440447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27103 (or 27100 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 49440447 is about 7031.3901186039. The cubic root of 49440447 is about 367.0237173059.

The spelling of 49440447 in words is "forty-nine million, four hundred forty thousand, four hundred forty-seven".