994140899 has 8 divisors (see below), whose sum is σ = 1019744880. Its totient is φ = 968601600.

The previous prime is 994140869. The next prime is 994140907. The reversal of 994140899 is 998041499.

994140899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 31530²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 994140899 - 2¹⁶ = 994075363 is a prime.

It is a super-2 number, since 2×994140899² = 1976632254129056402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 994140899.

It is not an unprimeable number, because it can be changed into a prime (994140869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15764 + ... + 47294.

It is an arithmetic number, because the mean of its divisors is an integer number (127468110).

Almost surely, 2^994140899 is an apocalyptic number.

994140899 is a deficient number, since it is larger than the sum of its proper divisors (25603981).

994140899 is a wasteful number, since it uses less digits than its factorization.

994140899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32341.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 994140899 is about 31529.9999841421. Note that the first 4 decimals coincide. The cubic root of 994140899 is about 998.0431395282.

The spelling of 994140899 in words is "nine hundred ninety-four million, one hundred forty thousand, eight hundred ninety-nine".