994393580 has 48 divisors (see below), whose sum is σ = 2216634336. Its totient is φ = 373416960.

The previous prime is 994393567. The next prime is 994393583. The reversal of 994393580 is 85393499.

It is a Smith number, since the sum of its digits (50) 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 (994393583) 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, 139667 + ... + 146613.

It is an arithmetic number, because the mean of its divisors is an integer number (46179882).

Almost surely, 2^994393580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994393580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108317168).

994393580 is an abundant number, since it is smaller than the sum of its proper divisors (1222240756).

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

994393580 is a wasteful number, since it uses less digits than its factorization.

994393580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7394 (or 7392 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 50.

The square root of 994393580 is about 31534.0067229015. The cubic root of 994393580 is about 998.1276899763.

The spelling of 994393580 in words is "nine hundred ninety-four million, three hundred ninety-three thousand, five hundred eighty".