2045566 has 8 divisors (see below), whose sum is σ = 3167424. Its totient is φ = 989760.

The previous prime is 2045557. The next prime is 2045567. The reversal of 2045566 is 6655402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16435 + ... + 16558.

It is an arithmetic number, because the mean of its divisors is an integer number (395928).

2^2045566 is an apocalyptic number.

2045566 is a deficient number, since it is larger than the sum of its proper divisors (1121858).

2045566 is a wasteful number, since it uses less digits than its factorization.

2045566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33026.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2045566 is about 1430.2328481754. The cubic root of 2045566 is about 126.9417551754.

The spelling of 2045566 in words is "two million, forty-five thousand, five hundred sixty-six".