2249641 has 4 divisors (see below), whose sum is σ = 2280532. Its totient is φ = 2218752.

The previous prime is 2249633. The next prime is 2249693. The reversal of 2249641 is 1469422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 570025 + 1679616 = 755^2 + 1296^2 .

It is a cyclic number.

It is not a de Polignac number, because 2249641 - 2³ = 2249633 is a prime.

It is a Duffinian number.

2249641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2249141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15336 + ... + 15481.

It is an arithmetic number, because the mean of its divisors is an integer number (570133).

2^2249641 is an apocalyptic number.

It is an amenable number.

2249641 is a deficient number, since it is larger than the sum of its proper divisors (30891).

2249641 is an equidigital number, since it uses as much as digits as its factorization.

2249641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30890.

The product of its digits is 3456, while the sum is 28.

The square root of 2249641 is about 1499.8803285596. The cubic root of 2249641 is about 131.0301001089.

The spelling of 2249641 in words is "two million, two hundred forty-nine thousand, six hundred forty-one".