2290680 has 160 divisors (see below), whose sum is σ = 8886240. Its totient is φ = 518400.

The previous prime is 2290649. The next prime is 2290703. The reversal of 2290680 is 860922.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 22630 + ... + 22730.

It is an arithmetic number, because the mean of its divisors is an integer number (55539).

2^2290680 is an apocalyptic number.

2290680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2290680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4443120).

2290680 is an abundant number, since it is smaller than the sum of its proper divisors (6595560).

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

2290680 is a wasteful number, since it uses less digits than its factorization.

2290680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2290680 is about 1513.4992566896. The cubic root of 2290680 is about 131.8220743275.

The spelling of 2290680 in words is "two million, two hundred ninety thousand, six hundred eighty".