2245405 has 8 divisors (see below), whose sum is σ = 2707200. Its totient is φ = 1787856.

The previous prime is 2245391. The next prime is 2245427. The reversal of 2245405 is 5045422.

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 2245405 - 2⁷ = 2245277 is a prime.

It is a super-2 number, since 2×2245405² = 10083687228050, which contains 22 as substring.

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, 256 + ... + 2134.

It is an arithmetic number, because the mean of its divisors is an integer number (338400).

2^2245405 is an apocalyptic number.

It is an amenable number.

2245405 is a deficient number, since it is larger than the sum of its proper divisors (461795).

2245405 is a wasteful number, since it uses less digits than its factorization.

2245405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2245405 is about 1498.4675505329. The cubic root of 2245405 is about 130.9478066459.

The spelling of 2245405 in words is "two million, two hundred forty-five thousand, four hundred five".