4434506645 has 4 divisors (see below), whose sum is σ = 5321407980. Its totient is φ = 3547605312.

The previous prime is 4434506633. The next prime is 4434506663. The reversal of 4434506645 is 5466054344.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2676717169 + 1757789476 = 51737^2 + 41926^2 .

It is a cyclic number.

It is not a de Polignac number, because 4434506645 - 2²⁰ = 4433458069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443450660 + ... + 443450669.

It is an arithmetic number, because the mean of its divisors is an integer number (1330351995).

Almost surely, 2^4434506645 is an apocalyptic number.

It is an amenable number.

4434506645 is a deficient number, since it is larger than the sum of its proper divisors (886901335).

4434506645 is an equidigital number, since it uses as much as digits as its factorization.

4434506645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886901334.

The product of its (nonzero) digits is 691200, while the sum is 41.

The square root of 4434506645 is about 66592.0914598723. The cubic root of 4434506645 is about 1642.9150323413.

The spelling of 4434506645 in words is "four billion, four hundred thirty-four million, five hundred six thousand, six hundred forty-five".