49443 has 4 divisors (see below), whose sum is σ = 65928.
Its totient is φ = 32960.
The previous prime is 49433. The next prime is 49451. The reversal of 49443 is 34494.
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 49443 - 25 = 49411 is a prime.
It is a super-2 number, since 2×494432 = 4889220498, which contains 22 as substring.
It is a D-number.
It is not an unprimeable number, because it can be changed into a prime (49433) 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, 8238 + ... + 8243.
It is an arithmetic number, because the mean of its divisors is an integer number (16482).
249443 is an apocalyptic number.
49443 is a deficient number, since it is larger than the sum of its proper divisors (16485).
49443 is a wasteful number, since it uses less digits than its factorization.
49443 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16484.
The product of its digits is 1728, while the sum is 24.
The square root of 49443 is about 222.3578197411.
The cubic root of 49443 is about 36.7030034640.
The spelling of 49443 in words is "forty-nine thousand, four hundred forty-three".