2240823 has 8 divisors (see below), whose sum is σ = 3217648. Its totient is φ = 1378944.

The previous prime is 2240809. The next prime is 2240827. The reversal of 2240823 is 3280422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2240823 - 2⁴ = 2240807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2240823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28690 + ... + 28767.

It is an arithmetic number, because the mean of its divisors is an integer number (402206).

2^2240823 is an apocalyptic number.

2240823 is a deficient number, since it is larger than the sum of its proper divisors (976825).

2240823 is a wasteful number, since it uses less digits than its factorization.

2240823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57473.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2240823 is about 1496.9378744624. The cubic root of 2240823 is about 130.8586747762.

The spelling of 2240823 in words is "two million, two hundred forty thousand, eight hundred twenty-three".