2259549 has 16 divisors (see below), whose sum is σ = 3412800. Its totient is φ = 1477008.

The previous prime is 2259539. The next prime is 2259557. The reversal of 2259549 is 9459522.

It is a happy number.

2259549 is a `hidden beast` number, since 22 + 595 + 49 = 666.

It is not a de Polignac number, because 2259549 - 2⁸ = 2259293 is a prime.

2259549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642 + ... + 2220.

It is an arithmetic number, because the mean of its divisors is an integer number (213300).

2^2259549 is an apocalyptic number.

It is an amenable number.

2259549 is a deficient number, since it is larger than the sum of its proper divisors (1153251).

2259549 is a wasteful number, since it uses less digits than its factorization.

2259549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1635 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 2259549 is about 1503.1796299844. The cubic root of 2259549 is about 131.2221818595. Note that the first 3 decimals are identical.

The spelling of 2259549 in words is "two million, two hundred fifty-nine thousand, five hundred forty-nine".