444433613 has 16 divisors (see below), whose sum is σ = 498960000. Its totient is φ = 393032640.

The previous prime is 444433597. The next prime is 444433621. The reversal of 444433613 is 316334444.

It is not a de Polignac number, because 444433613 - 2⁴ = 444433597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 444433613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444433663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44888 + ... + 53886.

It is an arithmetic number, because the mean of its divisors is an integer number (31185000).

Almost surely, 2^444433613 is an apocalyptic number.

It is an amenable number.

444433613 is a deficient number, since it is larger than the sum of its proper divisors (54526387).

444433613 is a wasteful number, since it uses less digits than its factorization.

444433613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9172.

The product of its digits is 41472, while the sum is 32.

The square root of 444433613 is about 21081.5941759631. The cubic root of 444433613 is about 763.1366288642.

The spelling of 444433613 in words is "four hundred forty-four million, four hundred thirty-three thousand, six hundred thirteen".