4284442649 has 4 divisors (see below), whose sum is σ = 4284574464. Its totient is φ = 4284310836.

The previous prime is 4284442627. The next prime is 4284442651. The reversal of 4284442649 is 9462444824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4284442649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4284442619) 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, 21404 + ... + 95010.

It is an arithmetic number, because the mean of its divisors is an integer number (1071143616).

Almost surely, 2^4284442649 is an apocalyptic number.

It is an amenable number.

4284442649 is a deficient number, since it is larger than the sum of its proper divisors (131815).

4284442649 is an equidigital number, since it uses as much as digits as its factorization.

4284442649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131814.

The product of its digits is 1769472, while the sum is 47.

The square root of 4284442649 is about 65455.6540644122. The cubic root of 4284442649 is about 1624.1698512007.

The spelling of 4284442649 in words is "four billion, two hundred eighty-four million, four hundred forty-two thousand, six hundred forty-nine".