2205418 has 4 divisors (see below), whose sum is σ = 3308130. Its totient is φ = 1102708.

The previous prime is 2205409. The next prime is 2205449. The reversal of 2205418 is 8145022.

2205418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 1996569 + 208849 = 1413^2 + 457^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551353 + ... + 551356.

2^2205418 is an apocalyptic number.

2205418 is a deficient number, since it is larger than the sum of its proper divisors (1102712).

2205418 is a wasteful number, since it uses less digits than its factorization.

2205418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102711.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2205418 is about 1485.0649817432. The cubic root of 2205418 is about 130.1658238933.

The spelling of 2205418 in words is "two million, two hundred five thousand, four hundred eighteen".