994312049 has 4 divisors (see below), whose sum is σ = 1007932836. Its totient is φ = 980691264.

The previous prime is 994312043. The next prime is 994312051. The reversal of 994312049 is 940213499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940213499 = 19 ⋅49484921.

It can be written as a sum of positive squares in 2 ways, for example, as 728622049 + 265690000 = 26993^2 + 16300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994312049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 994311997 and 994312015.

It is not an unprimeable number, because it can be changed into a prime (994312043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6810284 + ... + 6810429.

It is an arithmetic number, because the mean of its divisors is an integer number (251983209).

Almost surely, 2^994312049 is an apocalyptic number.

It is an amenable number.

994312049 is a deficient number, since it is larger than the sum of its proper divisors (13620787).

994312049 is a wasteful number, since it uses less digits than its factorization.

994312049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13620786.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 994312049 is about 31532.7139491671. The cubic root of 994312049 is about 998.1004101767.

The spelling of 994312049 in words is "nine hundred ninety-four million, three hundred twelve thousand, forty-nine".