994228644024 has 160 divisors (see below), whose sum is σ = 3471909724800. Its totient is φ = 258241193280.

The previous prime is 994228644001. The next prime is 994228644047. The reversal of 994228644024 is 420446822499.

It is a happy number.

994228644024 is a `hidden beast` number, since 9 + 9 + 4 + 228 + 6 + 4 + 402 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (994228644001) and next prime (994228644047).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9913114 + ... + 10012905.

It is an arithmetic number, because the mean of its divisors is an integer number (21699435780).

Almost surely, 2^994228644024 is an apocalyptic number.

It is an amenable number.

994228644024 is an abundant number, since it is smaller than the sum of its proper divisors (2477681080776).

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

994228644024 is a wasteful number, since it uses less digits than its factorization.

994228644024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19926055 (or 19926042 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 994228644024 in words is "nine hundred ninety-four billion, two hundred twenty-eight million, six hundred forty-four thousand, twenty-four".