2540170 has 16 divisors (see below), whose sum is σ = 4591080. Its totient is φ = 1011904.

The previous prime is 2540141. The next prime is 2540173. The reversal of 2540170 is 710452.

It can be written as a sum of positive squares in 4 ways, for example, as 1375929 + 1164241 = 1173^2 + 1079^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2540173) 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, 3564 + ... + 4216.

2^2540170 is an apocalyptic number.

2540170 is a deficient number, since it is larger than the sum of its proper divisors (2050910).

2540170 is a wasteful number, since it uses less digits than its factorization.

2540170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2540170 is about 1593.7910779020. The cubic root of 2540170 is about 136.4439428654.

The spelling of 2540170 in words is "two million, five hundred forty thousand, one hundred seventy".