994289992 has 16 divisors (see below), whose sum is σ = 1864692540. Its totient is φ = 497038656.

The previous prime is 994289957. The next prime is 994290013. The reversal of 994289992 is 299982499.

It can be written as a sum of positive squares in 2 ways, for example, as 968827876 + 25462116 = 31126^2 + 5046^2 .

It is a super-2 number, since 2×994289992² = 1977225176382720128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 994289992.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38158 + ... + 58690.

Almost surely, 2^994289992 is an apocalyptic number.

It is an amenable number.

994289992 is a deficient number, since it is larger than the sum of its proper divisors (870402548).

994289992 is a wasteful number, since it uses less digits than its factorization.

994289992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26592 (or 26588 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 61.

The square root of 994289992 is about 31532.3641993429. The cubic root of 994289992 is about 998.0930297762.

The spelling of 994289992 in words is "nine hundred ninety-four million, two hundred eighty-nine thousand, nine hundred ninety-two".