2129994 has 24 divisors (see below), whose sum is σ = 4681092. Its totient is φ = 699840.

The previous prime is 2129983. The next prime is 2130001. The reversal of 2129994 is 4999212.

It can be written as a sum of positive squares in 2 ways, for example, as 2064969 + 65025 = 1437^2 + 255^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504 + ... + 2124.

2^2129994 is an apocalyptic number.

2129994 is an abundant number, since it is smaller than the sum of its proper divisors (2551098).

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

2129994 is a wasteful number, since it uses less digits than its factorization.

2129994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702 (or 1699 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 2129994 is about 1459.4498963651. The cubic root of 2129994 is about 128.6647143102.

The spelling of 2129994 in words is "two million, one hundred twenty-nine thousand, nine hundred ninety-four".