2268405 has 24 divisors (see below), whose sum is σ = 4079712. Its totient is φ = 1209168.

The previous prime is 2268403. The next prime is 2268437. The reversal of 2268405 is 5048622.

It is not a de Polignac number, because 2268405 - 2¹ = 2268403 is a prime.

It is a super-2 number, since 2×2268405² = 10291322488050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁵ + 6⁷ + 8³ + 4² + 0 + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2268403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282 + ... + 2148.

It is an arithmetic number, because the mean of its divisors is an integer number (169988).

2^2268405 is an apocalyptic number.

It is an amenable number.

2268405 is a deficient number, since it is larger than the sum of its proper divisors (1811307).

2268405 is an equidigital number, since it uses as much as digits as its factorization.

2268405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2268405 is about 1506.1225049776. The cubic root of 2268405 is about 131.3933943011.

The spelling of 2268405 in words is "two million, two hundred sixty-eight thousand, four hundred five".