994220836 has 12 divisors (see below), whose sum is σ = 1988441728. Its totient is φ = 426094632.

The previous prime is 994220819. The next prime is 994220837. The reversal of 994220836 is 638022499.

994220836 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 994220792 and 994220801.

It is not an unprimeable number, because it can be changed into a prime (994220837) 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, 17753916 + ... + 17753971.

Almost surely, 2^994220836 is an apocalyptic number.

It is an amenable number.

994220836 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

994220836 is a wasteful number, since it uses less digits than its factorization.

994220836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35507898 (or 35507896 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 994220836 is about 31531.2675926611. The cubic root of 994220836 is about 998.0698890686.

The spelling of 994220836 in words is "nine hundred ninety-four million, two hundred twenty thousand, eight hundred thirty-six".