2265578 has 16 divisors (see below), whose sum is σ = 3979584. Its totient is φ = 947040.

The previous prime is 2265551. The next prime is 2265581. The reversal of 2265578 is 8755622.

It is a Curzon 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, 1400 + ... + 2547.

It is an arithmetic number, because the mean of its divisors is an integer number (248724).

2^2265578 is an apocalyptic number.

2265578 is a deficient number, since it is larger than the sum of its proper divisors (1714006).

2265578 is a wasteful number, since it uses less digits than its factorization.

2265578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997.

The product of its digits is 33600, while the sum is 35.

The square root of 2265578 is about 1505.1837097179. The cubic root of 2265578 is about 131.3387885996.

The spelling of 2265578 in words is "two million, two hundred sixty-five thousand, five hundred seventy-eight".