2045570 has 8 divisors (see below), whose sum is σ = 3682044. Its totient is φ = 818224.

The previous prime is 2045569. The next prime is 2045587. The reversal of 2045570 is 755402.

It can be written as a sum of positive squares in 2 ways, for example, as 1923769 + 121801 = 1387^2 + 349^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102269 + ... + 102288.

2^2045570 is an apocalyptic number.

2045570 is a deficient number, since it is larger than the sum of its proper divisors (1636474).

2045570 is a wasteful number, since it uses less digits than its factorization.

2045570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204564.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 2045570 is about 1430.2342465484. The cubic root of 2045570 is about 126.9418379180.

The spelling of 2045570 in words is "two million, forty-five thousand, five hundred seventy".