2281394 has 4 divisors (see below), whose sum is σ = 3422094. Its totient is φ = 1140696.

The previous prime is 2281381. The next prime is 2281403. The reversal of 2281394 is 4931822.

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., 2211169 + 70225 = 1487^2 + 265^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570347 + ... + 570350.

2^2281394 is an apocalyptic number.

2281394 is a deficient number, since it is larger than the sum of its proper divisors (1140700).

2281394 is a wasteful number, since it uses less digits than its factorization.

2281394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140699.

The product of its digits is 3456, while the sum is 29.

The square root of 2281394 is about 1510.4284160463. The cubic root of 2281394 is about 131.6437055156.

The spelling of 2281394 in words is "two million, two hundred eighty-one thousand, three hundred ninety-four".