2240445666 has 32 divisors (see below), whose sum is σ = 4560292800. Its totient is φ = 733694976.

The previous prime is 2240445659. The next prime is 2240445677. The reversal of 2240445666 is 6665440422.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65685 + ... + 93783.

It is an arithmetic number, because the mean of its divisors is an integer number (142509150).

Almost surely, 2^2240445666 is an apocalyptic number.

2240445666 is an abundant number, since it is smaller than the sum of its proper divisors (2319847134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2240445666 is a wasteful number, since it uses less digits than its factorization.

2240445666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28338.

The product of its (nonzero) digits is 276480, while the sum is 39.

The square root of 2240445666 is about 47333.3462370874. The cubic root of 2240445666 is about 1308.5132923116.

The spelling of 2240445666 in words is "two billion, two hundred forty million, four hundred forty-five thousand, six hundred sixty-six".