994622281 has 16 divisors (see below), whose sum is σ = 1109631744. Its totient is φ = 886685184.

The previous prime is 994622267. The next prime is 994622297. The reversal of 994622281 is 182226499.

It is a happy number.

It is not a de Polignac number, because 994622281 - 2⁵ = 994622249 is a prime.

It is a super-2 number, since 2×994622281² = 1978546963723285922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994622201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27925 + ... + 52621.

It is an arithmetic number, because the mean of its divisors is an integer number (69351984).

Almost surely, 2^994622281 is an apocalyptic number.

It is an amenable number.

994622281 is a deficient number, since it is larger than the sum of its proper divisors (115009463).

994622281 is a wasteful number, since it uses less digits than its factorization.

994622281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24840.

The product of its digits is 124416, while the sum is 43.

The square root of 994622281 is about 31537.6327741953. The cubic root of 994622281 is about 998.2042040473.

The spelling of 994622281 in words is "nine hundred ninety-four million, six hundred twenty-two thousand, two hundred eighty-one".