2249729 has 8 divisors (see below), whose sum is σ = 2423520. Its totient is φ = 2080576.

The previous prime is 2249719. The next prime is 2249743. The reversal of 2249729 is 9279422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2249729 - 2²⁰ = 1201153 is a prime.

It is a super-2 number, since 2×2249729² = 10122561146882, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 4⁶ + 9 + 7⁵ + 2²¹ + 9² .

It is not an unprimeable number, because it can be changed into a prime (2249719) 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, 119 + ... + 2124.

It is an arithmetic number, because the mean of its divisors is an integer number (302940).

2^2249729 is an apocalyptic number.

It is an amenable number.

2249729 is a deficient number, since it is larger than the sum of its proper divisors (173791).

2249729 is a wasteful number, since it uses less digits than its factorization.

2249729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319.

The product of its digits is 18144, while the sum is 35.

The square root of 2249729 is about 1499.9096639465. The cubic root of 2249729 is about 131.0318086035.

The spelling of 2249729 in words is "two million, two hundred forty-nine thousand, seven hundred twenty-nine".