7444221403 has 4 divisors (see below), whose sum is σ = 7444430928. Its totient is φ = 7444011880.

The previous prime is 7444221397. The next prime is 7444221431. The reversal of 7444221403 is 3041224447.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7444221403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7444222403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36751 + ... + 127432.

It is an arithmetic number, because the mean of its divisors is an integer number (1861107732).

Almost surely, 2^7444221403 is an apocalyptic number.

7444221403 is a deficient number, since it is larger than the sum of its proper divisors (209525).

7444221403 is a wasteful number, since it uses less digits than its factorization.

7444221403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209524.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 7444221403 is about 86279.9015008710. The cubic root of 7444221403 is about 1952.5691669884.

The spelling of 7444221403 in words is "seven billion, four hundred forty-four million, two hundred twenty-one thousand, four hundred three".