2281437 has 6 divisors (see below), whose sum is σ = 3295422. Its totient is φ = 1520952.

The previous prime is 2281429. The next prime is 2281481. The reversal of 2281437 is 7341822.

2281437 is a `hidden beast` number, since 228 + 1 + 437 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2277081 + 4356 = 1509^2 + 66^2 .

It is not a de Polignac number, because 2281437 - 2³ = 2281429 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2²¹ + 8³ + 1 + 4⁶ + 3¹¹ + 7⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 2281437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2286437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126738 + ... + 126755.

It is an arithmetic number, because the mean of its divisors is an integer number (549237).

2^2281437 is an apocalyptic number.

It is an amenable number.

2281437 is a deficient number, since it is larger than the sum of its proper divisors (1013985).

2281437 is a wasteful number, since it uses less digits than its factorization.

2281437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253499 (or 253496 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2281437 is about 1510.4426503512. The cubic root of 2281437 is about 131.6445325894.

It can be divided in two parts, 228143 and 7, that added together give a triangular number (228150 = T₆₇₅).

The spelling of 2281437 in words is "two million, two hundred eighty-one thousand, four hundred thirty-seven".