634449443 has 4 divisors (see below), whose sum is σ = 656327040. Its totient is φ = 612571848.

The previous prime is 634449407. The next prime is 634449449. The reversal of 634449443 is 344944436.

634449443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 634449443 - 2¹² = 634445347 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 634449443.

It is not an unprimeable number, because it can be changed into a prime (634449449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10938755 + ... + 10938812.

It is an arithmetic number, because the mean of its divisors is an integer number (164081760).

Almost surely, 2^634449443 is an apocalyptic number.

634449443 is a deficient number, since it is larger than the sum of its proper divisors (21877597).

634449443 is a wasteful number, since it uses less digits than its factorization.

634449443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21877596.

The product of its digits is 497664, while the sum is 41.

The square root of 634449443 is about 25188.2798737826. The cubic root of 634449443 is about 859.2753238143.

The spelling of 634449443 in words is "six hundred thirty-four million, four hundred forty-nine thousand, four hundred forty-three".