2249649 has 12 divisors (see below), whose sum is σ = 3269812. Its totient is φ = 1490400.

The previous prime is 2249633. The next prime is 2249693. The reversal of 2249649 is 9469422.

2249649 is a `hidden beast` number, since 2 + 2 + 4 + 9 + 649 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 378225 + 1871424 = 615^2 + 1368^2 .

It is not a de Polignac number, because 2249649 - 2⁴ = 2249633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2249609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 939 + ... + 2319.

2^2249649 is an apocalyptic number.

It is an amenable number.

2249649 is a deficient number, since it is larger than the sum of its proper divisors (1020163).

2249649 is a wasteful number, since it uses less digits than its factorization.

2249649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568 (or 1565 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 2249649 is about 1499.8829954366. The cubic root of 2249649 is about 131.0302554285.

The spelling of 2249649 in words is "two million, two hundred forty-nine thousand, six hundred forty-nine".