994740425 has 18 divisors (see below), whose sum is σ = 1434864078. Its totient is φ = 682106880.

The previous prime is 994740407. The next prime is 994740427. The reversal of 994740425 is 524047499.

It can be written as a sum of positive squares in 3 ways, for example, as 21799561 + 972940864 = 4669^2 + 31192^2 .

It is not a de Polignac number, because 994740425 - 2¹⁰ = 994739401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994740427) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 404792 + ... + 407241.

It is an arithmetic number, because the mean of its divisors is an integer number (79714671).

Almost surely, 2^994740425 is an apocalyptic number.

It is an amenable number.

994740425 is a deficient number, since it is larger than the sum of its proper divisors (440123653).

994740425 is a wasteful number, since it uses less digits than its factorization.

994740425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812057 (or 812045 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 994740425 is about 31539.5057824310. The cubic root of 994740425 is about 998.2437256394.

The spelling of 994740425 in words is "nine hundred ninety-four million, seven hundred forty thousand, four hundred twenty-five".