2249745 has 16 divisors (see below), whose sum is σ = 3756672. Its totient is φ = 1147520.

The previous prime is 2249743. The next prime is 2249747. The reversal of 2249745 is 5479422.

It is an interprime number because it is at equal distance from previous prime (2249743) and next prime (2249747).

It is not a de Polignac number, because 2249745 - 2¹ = 2249743 is a prime.

It is a super-2 number, since 2×2249745² = 10122705130050, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹³ + 2²¹ + 4 + 9³ + 7 + 4⁸ + 5⁷ .

It is not an unprimeable number, because it can be changed into a prime (2249743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2916 + ... + 3605.

It is an arithmetic number, because the mean of its divisors is an integer number (234792).

2^2249745 is an apocalyptic number.

It is an amenable number.

2249745 is a deficient number, since it is larger than the sum of its proper divisors (1506927).

2249745 is a wasteful number, since it uses less digits than its factorization.

2249745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552.

The product of its digits is 20160, while the sum is 33.

The square root of 2249745 is about 1499.9149975915. The cubic root of 2249745 is about 131.0321192341.

The spelling of 2249745 in words is "two million, two hundred forty-nine thousand, seven hundred forty-five".