2272805 has 8 divisors (see below), whose sum is σ = 2739744. Its totient is φ = 1810000.

The previous prime is 2272771. The next prime is 2272811. The reversal of 2272805 is 5082722.

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

It is not a de Polignac number, because 2272805 - 2⁸ = 2272549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350 + ... + 2160.

It is an arithmetic number, because the mean of its divisors is an integer number (342468).

2^2272805 is an apocalyptic number.

It is an amenable number.

2272805 is a deficient number, since it is larger than the sum of its proper divisors (466939).

2272805 is a wasteful number, since it uses less digits than its factorization.

2272805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2272805 is about 1507.5825018884. The cubic root of 2272805 is about 131.4782935348.

It can be divided in two parts, 22 and 72805, that added together give a palindrome (72827).

The spelling of 2272805 in words is "two million, two hundred seventy-two thousand, eight hundred five".