2541218 has 4 divisors (see below), whose sum is σ = 3811830. Its totient is φ = 1270608.

The previous prime is 2541173. The next prime is 2541229. The reversal of 2541218 is 8121452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2486929 + 54289 = 1577^2 + 233^2 .

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2541193 and 2541202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635303 + ... + 635306.

2^2541218 is an apocalyptic number.

2541218 is a deficient number, since it is larger than the sum of its proper divisors (1270612).

2541218 is a wasteful number, since it uses less digits than its factorization.

2541218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270611.

The product of its digits is 640, while the sum is 23.

The square root of 2541218 is about 1594.1198198379. The cubic root of 2541218 is about 136.4627045483.

The spelling of 2541218 in words is "two million, five hundred forty-one thousand, two hundred eighteen".