2240706 has 32 divisors (see below), whose sum is σ = 5040000. Its totient is φ = 658944.

The previous prime is 2240701. The next prime is 2240723. The reversal of 2240706 is 6070422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240701) 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, 1170 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (157500).

2^2240706 is an apocalyptic number.

2240706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2240706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2520000).

2240706 is an abundant number, since it is smaller than the sum of its proper divisors (2799294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2240706 is a wasteful number, since it uses less digits than its factorization.

2240706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2240706 is about 1496.8987941741. The cubic root of 2240706 is about 130.8563972304.

The spelling of 2240706 in words is "two million, two hundred forty thousand, seven hundred six".