994920640 has 112 divisors (see below), whose sum is σ = 2715914304. Its totient is φ = 340070400.

The previous prime is 994920629. The next prime is 994920643. The reversal of 994920640 is 46029499.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (994920643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1211430 + ... + 1212250.

Almost surely, 2^994920640 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 994920640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1357957152).

994920640 is an abundant number, since it is smaller than the sum of its proper divisors (1720993664).

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

994920640 is a wasteful number, since it uses less digits than its factorization.

994920640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 994920640 is about 31542.3626255232. The cubic root of 994920640 is about 998.3040052279.

The spelling of 994920640 in words is "nine hundred ninety-four million, nine hundred twenty thousand, six hundred forty".