2684890 has 32 divisors (see below), whose sum is σ = 5483520. Its totient is φ = 938304.

The previous prime is 2684881. The next prime is 2684893. The reversal of 2684890 is 984862.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2684893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1927 + ... + 3013.

It is an arithmetic number, because the mean of its divisors is an integer number (171360).

2^2684890 is an apocalyptic number.

2684890 is an abundant number, since it is smaller than the sum of its proper divisors (2798630).

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

2684890 is a wasteful number, since it uses less digits than its factorization.

2684890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2684890 is about 1638.5633951727. The cubic root of 2684890 is about 138.9874218731.

The spelling of 2684890 in words is "two million, six hundred eighty-four thousand, eight hundred ninety".