2281418 has 4 divisors (see below), whose sum is σ = 3422130. Its totient is φ = 1140708.

The previous prime is 2281403. The next prime is 2281429. The reversal of 2281418 is 8141822.

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., 2007889 + 273529 = 1417^2 + 523^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570353 + ... + 570356.

2^2281418 is an apocalyptic number.

2281418 is a deficient number, since it is larger than the sum of its proper divisors (1140712).

2281418 is a wasteful number, since it uses less digits than its factorization.

2281418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140711.

The product of its digits is 1024, while the sum is 26.

The square root of 2281418 is about 1510.4363607911. The cubic root of 2281418 is about 131.6441671394.

The spelling of 2281418 in words is "two million, two hundred eighty-one thousand, four hundred eighteen".