3631444468 has 6 divisors (see below), whose sum is σ = 6355027826. Its totient is φ = 1815722232.

The previous prime is 3631444441. The next prime is 3631444517. The reversal of 3631444468 is 8644441363.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3612971664 + 18472804 = 60108^2 + 4298^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453930555 + ... + 453930562.

Almost surely, 2^3631444468 is an apocalyptic number.

It is an amenable number.

3631444468 is a deficient number, since it is larger than the sum of its proper divisors (2723583358).

3631444468 is a wasteful number, since it uses less digits than its factorization.

3631444468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907861121 (or 907861119 counting only the distinct ones).

The product of its digits is 663552, while the sum is 43.

The square root of 3631444468 is about 60261.4675227877. The cubic root of 3631444468 is about 1537.0681933484.

The spelling of 3631444468 in words is "three billion, six hundred thirty-one million, four hundred forty-four thousand, four hundred sixty-eight".