993580442 has 8 divisors (see below), whose sum is σ = 1538447232. Its totient is φ = 480764700.

The previous prime is 993580439. The next prime is 993580447. The reversal of 993580442 is 244085399.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 993580393 and 993580402.

It is not an unprimeable number, because it can be changed into a prime (993580447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8012684 + ... + 8012807.

It is an arithmetic number, because the mean of its divisors is an integer number (192305904).

Almost surely, 2^993580442 is an apocalyptic number.

993580442 is a deficient number, since it is larger than the sum of its proper divisors (544866790).

993580442 is a wasteful number, since it uses less digits than its factorization.

993580442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16025524.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 993580442 is about 31521.1110527532. Note that the first 3 decimals coincide. The cubic root of 993580442 is about 997.8555519631.

The spelling of 993580442 in words is "nine hundred ninety-three million, five hundred eighty thousand, four hundred forty-two".