994339920 has 160 divisors (see below), whose sum is σ = 3708334080. Its totient is φ = 215308800.

The previous prime is 994339909. The next prime is 994339937. The reversal of 994339920 is 29933499.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 994339920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16345 + ... + 47495.

It is an arithmetic number, because the mean of its divisors is an integer number (23177088).

Almost surely, 2^994339920 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 994339920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1854167040).

994339920 is an abundant number, since it is smaller than the sum of its proper divisors (2713994160).

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

994339920 is a wasteful number, since it uses less digits than its factorization.

994339920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31193 (or 31187 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 48.

The square root of 994339920 is about 31533.1558839264. The cubic root of 994339920 is about 998.1097358194.

The spelling of 994339920 in words is "nine hundred ninety-four million, three hundred thirty-nine thousand, nine hundred twenty".