994238323224 has 32 divisors (see below), whose sum is σ = 2485630707120. Its totient is φ = 331408121216.

The previous prime is 994238323223. The next prime is 994238323229. The reversal of 994238323224 is 422323832499.

It is a happy number.

It is a Cunningham number, because it is equal to 997115²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994238323223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744954 + ... + 2243510.

Almost surely, 2^994238323224 is an apocalyptic number.

It is an amenable number.

994238323224 is an abundant number, since it is smaller than the sum of its proper divisors (1491392383896).

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

994238323224 is a wasteful number, since it uses less digits than its factorization.

994238323224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581659 (or 581655 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 51.

The spelling of 994238323224 in words is "nine hundred ninety-four billion, two hundred thirty-eight million, three hundred twenty-three thousand, two hundred twenty-four".