4493198644 has 12 divisors (see below), whose sum is σ = 8577924768. Its totient is φ = 2042363000.

The previous prime is 4493198629. The next prime is 4493198653. The reversal of 4493198644 is 4468913944.

It is a junction number, because it is equal to n+sod(n) for n = 4493198591 and 4493198600.

It is a congruent number.

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, 51059032 + ... + 51059119.

It is an arithmetic number, because the mean of its divisors is an integer number (714827064).

Almost surely, 2^4493198644 is an apocalyptic number.

4493198644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4493198644 is a deficient number, since it is larger than the sum of its proper divisors (4084726124).

4493198644 is a wasteful number, since it uses less digits than its factorization.

4493198644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102118166 (or 102118164 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 4493198644 is about 67031.3258409827. The cubic root of 4493198644 is about 1650.1314427274.

The spelling of 4493198644 in words is "four billion, four hundred ninety-three million, one hundred ninety-eight thousand, six hundred forty-four".