2045572 has 12 divisors (see below), whose sum is σ = 3667356. Its totient is φ = 997760.

The previous prime is 2045569. The next prime is 2045587. The reversal of 2045572 is 2755402.

It can be written as a sum of positive squares in 2 ways, for example, as 662596 + 1382976 = 814^2 + 1176^2 .

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, 6073 + ... + 6400.

It is an arithmetic number, because the mean of its divisors is an integer number (305613).

2^2045572 is an apocalyptic number.

It is an amenable number.

2045572 is a deficient number, since it is larger than the sum of its proper divisors (1621784).

2045572 is a wasteful number, since it uses less digits than its factorization.

2045572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12518 (or 12516 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 2045572 is about 1430.2349457344. The cubic root of 2045572 is about 126.9418792893.

It can be divided in two parts, 204 and 5572, that added together give a square (5776 = 76²).

The spelling of 2045572 in words is "two million, forty-five thousand, five hundred seventy-two".