2281236 has 24 divisors (see below), whose sum is σ = 5447904. Its totient is φ = 742560.

The previous prime is 2281231. The next prime is 2281243. The reversal of 2281236 is 6321822.

2281236 = T₃₀₄ + T₃₀₅ + ... + T₃₄₆.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695 + ... + 2726.

It is an arithmetic number, because the mean of its divisors is an integer number (226996).

2^2281236 is an apocalyptic number.

It is an amenable number.

2281236 is an abundant number, since it is smaller than the sum of its proper divisors (3166668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2281236 is a wasteful number, since it uses less digits than its factorization.

2281236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471 (or 4469 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 2281236 is about 1510.3761120992. The cubic root of 2281236 is about 131.6406664109.

The spelling of 2281236 in words is "two million, two hundred eighty-one thousand, two hundred thirty-six".