2094640 has 20 divisors (see below), whose sum is σ = 4870224. Its totient is φ = 837824.

The previous prime is 2094637. The next prime is 2094647. The reversal of 2094640 is 464902.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (2094647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13012 + ... + 13171.

2^2094640 is an apocalyptic number.

2094640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2094640 is an abundant number, since it is smaller than the sum of its proper divisors (2775584).

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

2094640 is a wasteful number, since it uses less digits than its factorization.

2094640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26196 (or 26190 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2094640 is about 1447.2871173337. The cubic root of 2094640 is about 127.9488728101.

The spelling of 2094640 in words is "two million, ninety-four thousand, six hundred forty".