2281946 has 4 divisors (see below), whose sum is σ = 3422922. Its totient is φ = 1140972.

The previous prime is 2281921. The next prime is 2281973. The reversal of 2281946 is 6491822.

2281946 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., 1452025 + 829921 = 1205^2 + 911^2 .

It is a super-4 number, since 4×2281946⁴ (a number of 27 digits) contains 4444 as substring.

It is a Curzon 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, 570485 + ... + 570488.

2^2281946 is an apocalyptic number.

2281946 is a deficient number, since it is larger than the sum of its proper divisors (1140976).

2281946 is a wasteful number, since it uses less digits than its factorization.

2281946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140975.

The product of its digits is 6912, while the sum is 32.

The square root of 2281946 is about 1510.6111346074. The cubic root of 2281946 is about 131.6543220458.

The spelling of 2281946 in words is "two million, two hundred eighty-one thousand, nine hundred forty-six".