994128522 has 16 divisors (see below), whose sum is σ = 2052394752. Its totient is φ = 320686560.

The previous prime is 994128503. The next prime is 994128523. The reversal of 994128522 is 225821499.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (994128523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672203 + ... + 2672574.

It is an arithmetic number, because the mean of its divisors is an integer number (128274672).

Almost surely, 2^994128522 is an apocalyptic number.

994128522 is an abundant number, since it is smaller than the sum of its proper divisors (1058266230).

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

994128522 is a wasteful number, since it uses less digits than its factorization.

994128522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344813.

The product of its digits is 103680, while the sum is 42.

The square root of 994128522 is about 31529.8037101407. The cubic root of 994128522 is about 998.0389976501.

The spelling of 994128522 in words is "nine hundred ninety-four million, one hundred twenty-eight thousand, five hundred twenty-two".