993447340 has 48 divisors (see below), whose sum is σ = 2113155072. Its totient is φ = 392285376.

The previous prime is 993447311. The next prime is 993447341. The reversal of 993447340 is 43744399.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (993447341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575719 + ... + 577441.

It is an arithmetic number, because the mean of its divisors is an integer number (44024064).

Almost surely, 2^993447340 is an apocalyptic number.

It is an amenable number.

993447340 is an abundant number, since it is smaller than the sum of its proper divisors (1119707732).

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

993447340 is a wasteful number, since it uses less digits than its factorization.

993447340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086 (or 2084 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 993447340 is about 31518.9996668676. Note that the first 3 decimals coincide. The cubic root of 993447340 is about 997.8109917392.

The spelling of 993447340 in words is "nine hundred ninety-three million, four hundred forty-seven thousand, three hundred forty".