2289749 has 16 divisors (see below), whose sum is σ = 2889216. Its totient is φ = 1762800.

The previous prime is 2289743. The next prime is 2289751. The reversal of 2289749 is 9479822.

It is a cyclic number.

It is not a de Polignac number, because 2289749 - 2¹² = 2285653 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 8⁷ + 9 + 7⁴ + 4³ + 9⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289743) 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, 9974 + ... + 10200.

It is an arithmetic number, because the mean of its divisors is an integer number (180576).

2^2289749 is an apocalyptic number.

It is an amenable number.

2289749 is a deficient number, since it is larger than the sum of its proper divisors (599467).

2289749 is a wasteful number, since it uses less digits than its factorization.

2289749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

The product of its digits is 72576, while the sum is 41.

The square root of 2289749 is about 1513.1916600352. The cubic root of 2289749 is about 131.8042131128.

The spelling of 2289749 in words is "two million, two hundred eighty-nine thousand, seven hundred forty-nine".