4442520345 has 16 divisors (see below), whose sum is σ = 7228509120. Its totient is φ = 2329185344.

The previous prime is 4442520343. The next prime is 4442520349. The reversal of 4442520345 is 5430252444.

It is a cyclic number.

It is not a de Polignac number, because 4442520345 - 2¹ = 4442520343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4442520343) 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, 2509014 + ... + 2510783.

It is an arithmetic number, because the mean of its divisors is an integer number (451781820).

Almost surely, 2^4442520345 is an apocalyptic number.

It is an amenable number.

4442520345 is a deficient number, since it is larger than the sum of its proper divisors (2785988775).

4442520345 is a wasteful number, since it uses less digits than its factorization.

4442520345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019864.

The product of its (nonzero) digits is 76800, while the sum is 33.

The square root of 4442520345 is about 66652.2343586470. The cubic root of 4442520345 is about 1643.9040867760.

Adding to 4442520345 its reverse (5430252444), we get a palindrome (9872772789).

The spelling of 4442520345 in words is "four billion, four hundred forty-two million, five hundred twenty thousand, three hundred forty-five".