2240081 has 4 divisors (see below), whose sum is σ = 2358000. Its totient is φ = 2122164.

The previous prime is 2240071. The next prime is 2240083. The reversal of 2240081 is 1800422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2240081 - 2¹⁰ = 2239057 is a prime.

It is a super-2 number, since 2×2240081² = 10035925773122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2240083) 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, 58931 + ... + 58968.

It is an arithmetic number, because the mean of its divisors is an integer number (589500).

2^2240081 is an apocalyptic number.

It is an amenable number.

2240081 is a deficient number, since it is larger than the sum of its proper divisors (117919).

2240081 is a wasteful number, since it uses less digits than its factorization.

2240081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117918.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2240081 is about 1496.6900146657. The cubic root of 2240081 is about 130.8442295098.

The spelling of 2240081 in words is "two million, two hundred forty thousand, eighty-one".