993044394 has 32 divisors (see below), whose sum is σ = 2208349440. Its totient is φ = 330777216.

The previous prime is 993044383. The next prime is 993044401. The reversal of 993044394 is 493440399.

993044394 is a `hidden beast` number, since 99 + 30 + 443 + 94 = 666.

It is a super-2 number, since 2×993044394² = 1972274336909654472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79674 + ... + 91290.

It is an arithmetic number, because the mean of its divisors is an integer number (69010920).

Almost surely, 2^993044394 is an apocalyptic number.

993044394 is an abundant number, since it is smaller than the sum of its proper divisors (1215305046).

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

993044394 is a wasteful number, since it uses less digits than its factorization.

993044394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13211 (or 13205 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 993044394 is about 31512.6069058083. The cubic root of 993044394 is about 997.6760681912.

The spelling of 993044394 in words is "nine hundred ninety-three million, forty-four thousand, three hundred ninety-four".