994521528 has 192 divisors, whose sum is σ = 3616704000. Its totient is φ = 238429440.

The previous prime is 994521499. The next prime is 994521553. The reversal of 994521528 is 825125499.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65173 + ... + 78971.

It is an arithmetic number, because the mean of its divisors is an integer number (18837000).

Almost surely, 2^994521528 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 994521528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1808352000).

994521528 is an abundant number, since it is smaller than the sum of its proper divisors (2622182472).

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

994521528 is a wasteful number, since it uses less digits than its factorization.

994521528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13842 (or 13835 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 994521528 is about 31536.0353881080. The cubic root of 994521528 is about 998.1704976289.

The spelling of 994521528 in words is "nine hundred ninety-four million, five hundred twenty-one thousand, five hundred twenty-eight".