2499189443 has 4 divisors (see below), whose sum is σ = 2499293808. Its totient is φ = 2499085080.

The previous prime is 2499189419. The next prime is 2499189461. The reversal of 2499189443 is 3449819942.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3449819942 = 2 ⋅1724909971.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2499189443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2499189743) 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, 3653 + ... + 70793.

It is an arithmetic number, because the mean of its divisors is an integer number (624823452).

Almost surely, 2^2499189443 is an apocalyptic number.

2499189443 is a deficient number, since it is larger than the sum of its proper divisors (104365).

2499189443 is an equidigital number, since it uses as much as digits as its factorization.

2499189443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104364.

The product of its digits is 2239488, while the sum is 53.

The square root of 2499189443 is about 49991.8937728908. The cubic root of 2499189443 is about 1357.0621130957.

The spelling of 2499189443 in words is "two billion, four hundred ninety-nine million, one hundred eighty-nine thousand, four hundred forty-three".