994705920 has 560 divisors, whose sum is σ = 3944794392. Its totient is φ = 238878720.

The previous prime is 994705889. The next prime is 994705949. The reversal of 994705920 is 29507499.

994705920 is a `hidden beast` number, since 99 + 470 + 5 + 92 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 345067776 + 649638144 = 18576^2 + 25488^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 24261100 + ... + 24261140.

Almost surely, 2^994705920 is an apocalyptic number.

994705920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994705920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972397196).

994705920 is an abundant number, since it is smaller than the sum of its proper divisors (2950088472).

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

994705920 is an equidigital number, since it uses as much as digits as its factorization.

994705920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 994705920 is about 31538.9587653112. The cubic root of 994705920 is about 998.2321833325.

The spelling of 994705920 in words is "nine hundred ninety-four million, seven hundred five thousand, nine hundred twenty".