2040571 has 4 divisors (see below), whose sum is σ = 2197552. Its totient is φ = 1883592.

The previous prime is 2040559. The next prime is 2040593. The reversal of 2040571 is 1750402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1750402 = 2 ⋅875201.

It is a cyclic number.

It is not a de Polignac number, because 2040571 - 2⁵ = 2040539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040541) 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, 78471 + ... + 78496.

It is an arithmetic number, because the mean of its divisors is an integer number (549388).

2^2040571 is an apocalyptic number.

2040571 is a deficient number, since it is larger than the sum of its proper divisors (156981).

2040571 is a wasteful number, since it uses less digits than its factorization.

2040571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156980.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2040571 is about 1428.4855617051. The cubic root of 2040571 is about 126.8383460005.

Adding to 2040571 its reverse (1750402), we get a palindrome (3790973).

The spelling of 2040571 in words is "two million, forty thousand, five hundred seventy-one".