1994784126 has 8 divisors (see below), whose sum is σ = 3989568264. Its totient is φ = 664928040.

The previous prime is 1994784101. The next prime is 1994784133. The reversal of 1994784126 is 6214874991.

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

1994784126 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166232005 + ... + 166232016.

It is an arithmetic number, because the mean of its divisors is an integer number (498696033).

Almost surely, 2^1994784126 is an apocalyptic number.

1994784126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1994784126 is a wasteful number, since it uses less digits than its factorization.

1994784126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332464026.

The product of its digits is 870912, while the sum is 51.

The square root of 1994784126 is about 44663.0062355861. The cubic root of 1994784126 is about 1258.8248314780.

The spelling of 1994784126 in words is "one billion, nine hundred ninety-four million, seven hundred eighty-four thousand, one hundred twenty-six".