994006225 has 12 divisors (see below), whose sum is σ = 1233071500. Its totient is φ = 794880000.

The previous prime is 994006151. The next prime is 994006229. The reversal of 994006225 is 522600499.

It can be written as a sum of positive squares in 6 ways, for example, as 60031504 + 933974721 = 7748^2 + 30561^2 .

It is not a de Polignac number, because 994006225 - 2⁹ = 994005713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (994006229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68401 + ... + 81649.

Almost surely, 2^994006225 is an apocalyptic number.

It is an amenable number.

994006225 is a deficient number, since it is larger than the sum of its proper divisors (239065275).

994006225 is a wasteful number, since it uses less digits than its factorization.

994006225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16260 (or 16255 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 994006225 is about 31527.8642632196. The cubic root of 994006225 is about 997.9980699505.

It can be divided in two parts, 99400 and 6225, that added together give a square (105625 = 325²).

The spelling of 994006225 in words is "nine hundred ninety-four million, six thousand, two hundred twenty-five".