2140390 has 16 divisors (see below), whose sum is σ = 4403232. Its totient is φ = 733824.

The previous prime is 2140387. The next prime is 2140393. The reversal of 2140390 is 930412.

It is an interprime number because it is at equal distance from previous prime (2140387) and next prime (2140393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140393) 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, 15219 + ... + 15358.

It is an arithmetic number, because the mean of its divisors is an integer number (275202).

2^2140390 is an apocalyptic number.

2140390 is an abundant number, since it is smaller than the sum of its proper divisors (2262842).

2140390 is a wasteful number, since it uses less digits than its factorization.

2140390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30591.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2140390 is about 1463.0071770159. The cubic root of 2140390 is about 128.8737020795.

The spelling of 2140390 in words is "two million, one hundred forty thousand, three hundred ninety".