994227864 has 128 divisors (see below), whose sum is σ = 3018124800. Its totient is φ = 266434560.

The previous prime is 994227863. The next prime is 994227869. The reversal of 994227864 is 468722499.

994227864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994227863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1401942 + ... + 1402650.

It is an arithmetic number, because the mean of its divisors is an integer number (23579100).

Almost surely, 2^994227864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994227864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509062400).

994227864 is an abundant number, since it is smaller than the sum of its proper divisors (2023896936).

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

994227864 is a wasteful number, since it uses less digits than its factorization.

994227864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1229 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 994227864 is about 31531.3790373970. The cubic root of 994227864 is about 998.0722407991.

The spelling of 994227864 in words is "nine hundred ninety-four million, two hundred twenty-seven thousand, eight hundred sixty-four".