994268643 has 8 divisors (see below), whose sum is σ = 1332561168. Its totient is φ = 659410944.

The previous prime is 994268629. The next prime is 994268659. The reversal of 994268643 is 346862499.

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

It is not a de Polignac number, because 994268643 - 2¹³ = 994260451 is a prime.

It is a super-2 number, since 2×994268643² = 1977140268906122898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (994268623) 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 7 ways as a sum of consecutive naturals, for example, 858030 + ... + 859187.

It is an arithmetic number, because the mean of its divisors is an integer number (166570146).

Almost surely, 2^994268643 is an apocalyptic number.

994268643 is a deficient number, since it is larger than the sum of its proper divisors (338292525).

994268643 is a wasteful number, since it uses less digits than its factorization.

994268643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717413.

The product of its digits is 2239488, while the sum is 51.

The square root of 994268643 is about 31532.0256723224. The cubic root of 994268643 is about 998.0858861726.

The spelling of 994268643 in words is "nine hundred ninety-four million, two hundred sixty-eight thousand, six hundred forty-three".