2281492 has 6 divisors (see below), whose sum is σ = 3992618. Its totient is φ = 1140744.

The previous prime is 2281481. The next prime is 2281493. The reversal of 2281492 is 2941822.

It can be written as a sum of positive squares in only one way, i.e., 2268036 + 13456 = 1506^2 + 116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2281492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285183 + ... + 285190.

2^2281492 is an apocalyptic number.

It is an amenable number.

2281492 is a deficient number, since it is larger than the sum of its proper divisors (1711126).

2281492 is a wasteful number, since it uses less digits than its factorization.

2281492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570377 (or 570375 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 2281492 is about 1510.4608568248. The cubic root of 2281492 is about 131.6455904594.

The spelling of 2281492 in words is "two million, two hundred eighty-one thousand, four hundred ninety-two".