2272405 has 8 divisors (see below), whose sum is σ = 2743200. Its totient is φ = 1807056.

The previous prime is 2272397. The next prime is 2272409. The reversal of 2272405 is 5042722.

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

It is a cyclic number.

It is not a de Polignac number, because 2272405 - 2³ = 2272397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272409) 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, 375 + ... + 2164.

It is an arithmetic number, because the mean of its divisors is an integer number (342900).

2^2272405 is an apocalyptic number.

It is an amenable number.

2272405 is a deficient number, since it is larger than the sum of its proper divisors (470795).

2272405 is a wasteful number, since it uses less digits than its factorization.

2272405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 2272405 is about 1507.4498333278. The cubic root of 2272405 is about 131.4705799529.

It can be divided in two parts, 22 and 72405, that added together give a palindrome (72427).

The spelling of 2272405 in words is "two million, two hundred seventy-two thousand, four hundred five".