994991500 has 96 divisors (see below), whose sum is σ = 2341527552. Its totient is φ = 368280000.

The previous prime is 994991497. The next prime is 994991507. The reversal of 994991500 is 5199499.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (994991507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355105 + ... + 357895.

It is an arithmetic number, because the mean of its divisors is an integer number (24390912).

Almost surely, 2^994991500 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 994991500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170763776).

994991500 is an abundant number, since it is smaller than the sum of its proper divisors (1346536052).

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

994991500 is a wasteful number, since it uses less digits than its factorization.

994991500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864 (or 2852 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 994991500 is about 31543.4858568295. The cubic root of 994991500 is about 998.3277049883.

The spelling of 994991500 in words is "nine hundred ninety-four million, nine hundred ninety-one thousand, five hundred".