1994812494 has 16 divisors (see below), whose sum is σ = 4163087232. Its totient is φ = 636027128.

The previous prime is 1994812439. The next prime is 1994812511. The reversal of 1994812494 is 4942184991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7227444 + ... + 7227719.

It is an arithmetic number, because the mean of its divisors is an integer number (260192952).

Almost surely, 2^1994812494 is an apocalyptic number.

1994812494 is an abundant number, since it is smaller than the sum of its proper divisors (2168274738).

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

1994812494 is a wasteful number, since it uses less digits than its factorization.

1994812494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14455191.

The product of its digits is 746496, while the sum is 51.

The square root of 1994812494 is about 44663.3238127213. The cubic root of 1994812494 is about 1258.8307987358.

The spelling of 1994812494 in words is "one billion, nine hundred ninety-four million, eight hundred twelve thousand, four hundred ninety-four".