1994635794 has 16 divisors (see below), whose sum is σ = 4043920032. Its totient is φ = 655770528.

The previous prime is 1994635793. The next prime is 1994635813. The reversal of 1994635794 is 4975364991.

It is not an unprimeable number, because it can be changed into a prime (1994635793) 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, 2276544 + ... + 2277419.

It is an arithmetic number, because the mean of its divisors is an integer number (252745002).

Almost surely, 2^1994635794 is an apocalyptic number.

1994635794 is an abundant number, since it is smaller than the sum of its proper divisors (2049284238).

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

1994635794 is a wasteful number, since it uses less digits than its factorization.

1994635794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554041.

The product of its digits is 7348320, while the sum is 57.

The square root of 1994635794 is about 44661.3456357956. The cubic root of 1994635794 is about 1258.7936286641.

The spelling of 1994635794 in words is "one billion, nine hundred ninety-four million, six hundred thirty-five thousand, seven hundred ninety-four".