2822405 has 8 divisors (see below), whose sum is σ = 3396600. Its totient is φ = 2251456.

The previous prime is 2822387. The next prime is 2822411. The reversal of 2822405 is 5042282.

It can be written as a sum of positive squares in 4 ways, for example, as 73441 + 2748964 = 271^2 + 1658^2 .

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 2822405 - 2¹⁴ = 2806021 is a prime.

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, 1991 + ... + 3099.

It is an arithmetic number, because the mean of its divisors is an integer number (424575).

2^2822405 is an apocalyptic number.

It is an amenable number.

2822405 is a deficient number, since it is larger than the sum of its proper divisors (574195).

2822405 is a wasteful number, since it uses less digits than its factorization.

2822405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2822405 is about 1680.0014880946. The cubic root of 2822405 is about 141.3209161740.

Adding to 2822405 its reverse (5042282), we get a palindrome (7864687).

The spelling of 2822405 in words is "two million, eight hundred twenty-two thousand, four hundred five".