634244465 has 4 divisors (see below), whose sum is σ = 761093364. Its totient is φ = 507395568.

The previous prime is 634244459. The next prime is 634244467. The reversal of 634244465 is 564442436.

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 225840784 + 408403681 = 15028^2 + 20209^2 .

It is a cyclic number.

It is not a de Polignac number, because 634244465 - 2⁸ = 634244209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (634244467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63424442 + ... + 63424451.

It is an arithmetic number, because the mean of its divisors is an integer number (190273341).

Almost surely, 2^634244465 is an apocalyptic number.

It is an amenable number.

634244465 is a deficient number, since it is larger than the sum of its proper divisors (126848899).

634244465 is a wasteful number, since it uses less digits than its factorization.

634244465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126848898.

The product of its digits is 276480, while the sum is 38.

The square root of 634244465 is about 25184.2106288841. The cubic root of 634244465 is about 859.1827755895.

The spelling of 634244465 in words is "six hundred thirty-four million, two hundred forty-four thousand, four hundred sixty-five".