993146228 has 12 divisors (see below), whose sum is σ = 1743669312. Its totient is φ = 494955000.

The previous prime is 993146179. The next prime is 993146249. The reversal of 993146228 is 822641399.

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, 403148 + ... + 405603.

It is an arithmetic number, because the mean of its divisors is an integer number (145305776).

Almost surely, 2^993146228 is an apocalyptic number.

It is an amenable number.

993146228 is a deficient number, since it is larger than the sum of its proper divisors (750523084).

993146228 is a wasteful number, since it uses less digits than its factorization.

993146228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809062 (or 809060 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 993146228 is about 31514.2226304251. Note that the first 3 decimals coincide. The cubic root of 993146228 is about 997.7101700141.

The spelling of 993146228 in words is "nine hundred ninety-three million, one hundred forty-six thousand, two hundred twenty-eight".