2249749 has 8 divisors (see below), whose sum is σ = 2320128. Its totient is φ = 2180400.

The previous prime is 2249747. The next prime is 2249759. The reversal of 2249749 is 9479422.

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

It is a cyclic number.

It is not a de Polignac number, because 2249749 - 2¹ = 2249747 is a prime.

It is a super-2 number, since 2×2249749² = 10122741126002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2249743) 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, 6939 + ... + 7255.

It is an arithmetic number, because the mean of its divisors is an integer number (290016).

2^2249749 is an apocalyptic number.

It is an amenable number.

2249749 is a deficient number, since it is larger than the sum of its proper divisors (70379).

2249749 is a wasteful number, since it uses less digits than its factorization.

2249749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515.

The product of its digits is 36288, while the sum is 37.

The square root of 2249749 is about 1499.9163309998. The cubic root of 2249749 is about 131.0321968915.

The spelling of 2249749 in words is "two million, two hundred forty-nine thousand, seven hundred forty-nine".