993342644 has 24 divisors (see below), whose sum is σ = 2020361280. Its totient is φ = 418502016.

The previous prime is 993342631. The next prime is 993342719. The reversal of 993342644 is 446243399.

It is a junction number, because it is equal to n+sod(n) for n = 993342595 and 993342604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298997 + ... + 302300.

It is an arithmetic number, because the mean of its divisors is an integer number (84181720).

Almost surely, 2^993342644 is an apocalyptic number.

It is an amenable number.

993342644 is an abundant number, since it is smaller than the sum of its proper divisors (1027018636).

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

993342644 is a wasteful number, since it uses less digits than its factorization.

993342644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601367 (or 601365 counting only the distinct ones).

The product of its digits is 559872, while the sum is 44.

The square root of 993342644 is about 31517.3387835966. The cubic root of 993342644 is about 997.7759385511.

The spelling of 993342644 in words is "nine hundred ninety-three million, three hundred forty-two thousand, six hundred forty-four".