7444645 has 16 divisors (see below), whose sum is σ = 9806832. Its totient is φ = 5391360.

The previous prime is 7444643. The next prime is 7444649. The reversal of 7444645 is 5464447.

It can be written as a sum of positive squares in 8 ways, for example, as 57121 + 7387524 = 239^2 + 2718^2 .

It is not a de Polignac number, because 7444645 - 2¹ = 7444643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7444645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7444643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2365 + ... + 4525.

It is an arithmetic number, because the mean of its divisors is an integer number (612927).

Almost surely, 2^7444645 is an apocalyptic number.

It is an amenable number.

7444645 is a deficient number, since it is larger than the sum of its proper divisors (2362187).

7444645 is a wasteful number, since it uses less digits than its factorization.

7444645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232.

The product of its digits is 53760, while the sum is 34.

The square root of 7444645 is about 2728.4876763511. The cubic root of 7444645 is about 195.2606201833.

The spelling of 7444645 in words is "seven million, four hundred forty-four thousand, six hundred forty-five".