2240739 has 6 divisors (see below), whose sum is σ = 3236636. Its totient is φ = 1493820.

The previous prime is 2240737. The next prime is 2240741. The reversal of 2240739 is 9370422.

It is an interprime number because it is at equal distance from previous prime (2240737) and next prime (2240741).

It is not a de Polignac number, because 2240739 - 2¹ = 2240737 is a prime.

It is a super-2 number, since 2×2240739² = 10041822532242, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2³ + 2²¹ + 4⁸ + 0 + 7⁵ + 3⁷ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2240731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124477 + ... + 124494.

2^2240739 is an apocalyptic number.

2240739 is a deficient number, since it is larger than the sum of its proper divisors (995897).

2240739 is a wasteful number, since it uses less digits than its factorization.

2240739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248977 (or 248974 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2240739 is about 1496.9098169228. The cubic root of 2240739 is about 130.8570396231.

The spelling of 2240739 in words is "two million, two hundred forty thousand, seven hundred thirty-nine".