2851994 has 16 divisors (see below), whose sum is σ = 4411176. Its totient is φ = 1382400.

The previous prime is 2851991. The next prime is 2852027. The reversal of 2851994 is 4991582.

It can be written as a sum of positive squares in 4 ways, for example, as 1974025 + 877969 = 1405^2 + 937^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2851991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11714 + ... + 11954.

2^2851994 is an apocalyptic number.

2851994 is a deficient number, since it is larger than the sum of its proper divisors (1559182).

2851994 is a wasteful number, since it uses less digits than its factorization.

2851994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 25920, while the sum is 38.

The square root of 2851994 is about 1688.7847701824. The cubic root of 2851994 is about 141.8130516095.

The spelling of 2851994 in words is "two million, eight hundred fifty-one thousand, nine hundred ninety-four".