2540210 has 8 divisors (see below), whose sum is σ = 4572396. Its totient is φ = 1016080.

The previous prime is 2540203. The next prime is 2540231. The reversal of 2540210 is 120452.

It can be written as a sum of positive squares in 2 ways, for example, as 2343961 + 196249 = 1531^2 + 443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127001 + ... + 127020.

2^2540210 is an apocalyptic number.

2540210 is a deficient number, since it is larger than the sum of its proper divisors (2032186).

2540210 is a wasteful number, since it uses less digits than its factorization.

2540210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254028.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2540210 is about 1593.8036265488. The cubic root of 2540210 is about 136.4446590549. Note that the first 3 decimals are identical.

Adding to 2540210 its reverse (120452), we get a palindrome (2660662).

The spelling of 2540210 in words is "two million, five hundred forty thousand, two hundred ten".