3621494944 has 24 divisors (see below), whose sum is σ = 7375675860. Its totient is φ = 1748307456.

The previous prime is 3621494939. The next prime is 3621494963. The reversal of 3621494944 is 4494941263.

3621494944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3205824400 + 415670544 = 56620^2 + 20388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3621494894 and 3621494903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950309 + ... + 1952164.

Almost surely, 2^3621494944 is an apocalyptic number.

It is an amenable number.

3621494944 is an abundant number, since it is smaller than the sum of its proper divisors (3754180916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3621494944 is a wasteful number, since it uses less digits than its factorization.

3621494944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902512 (or 3902504 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 3621494944 is about 60178.8579486185. The cubic root of 3621494944 is about 1535.6631431801.

The spelling of 3621494944 in words is "three billion, six hundred twenty-one million, four hundred ninety-four thousand, nine hundred forty-four".