49478443 has 4 divisors (see below), whose sum is σ = 56546800. Its totient is φ = 42410088.

The previous prime is 49478441. The next prime is 49478459. The reversal of 49478443 is 34487494.

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

It is not a de Polignac number, because 49478443 - 2¹ = 49478441 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 49478443.

It is not an unprimeable number, because it can be changed into a prime (49478441) 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 3 ways as a sum of consecutive naturals, for example, 3534168 + ... + 3534181.

It is an arithmetic number, because the mean of its divisors is an integer number (14136700).

Almost surely, 2^49478443 is an apocalyptic number.

49478443 is a deficient number, since it is larger than the sum of its proper divisors (7068357).

49478443 is an equidigital number, since it uses as much as digits as its factorization.

49478443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068356.

The product of its digits is 387072, while the sum is 43.

The square root of 49478443 is about 7034.0914836246. The cubic root of 49478443 is about 367.1177149879.

The spelling of 49478443 in words is "forty-nine million, four hundred seventy-eight thousand, four hundred forty-three".