49189443 has 4 divisors (see below), whose sum is σ = 65585928. Its totient is φ = 32792960.

The previous prime is 49189409. The next prime is 49189451. The reversal of 49189443 is 34498194.

49189443 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 not a de Polignac number, because 49189443 - 2⁸ = 49189187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49189395 and 49189404.

It is not an unprimeable number, because it can be changed into a prime (49189453) 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, 8198238 + ... + 8198243.

It is an arithmetic number, because the mean of its divisors is an integer number (16396482).

Almost surely, 2^49189443 is an apocalyptic number.

49189443 is a deficient number, since it is larger than the sum of its proper divisors (16396485).

49189443 is a wasteful number, since it uses less digits than its factorization.

49189443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16396484.

The product of its digits is 124416, while the sum is 42.

The square root of 49189443 is about 7013.5185891249. The cubic root of 49189443 is about 366.4015494927.

The spelling of 49189443 in words is "forty-nine million, one hundred eighty-nine thousand, four hundred forty-three".