2040257 has 4 divisors (see below), whose sum is σ = 2054100. Its totient is φ = 2026416.

The previous prime is 2040253. The next prime is 2040263. The reversal of 2040257 is 7520402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1336336 + 703921 = 1156^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 2040257 - 2² = 2040253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040251) 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, 6698 + ... + 6995.

It is an arithmetic number, because the mean of its divisors is an integer number (513525).

2^2040257 is an apocalyptic number.

It is an amenable number.

2040257 is a deficient number, since it is larger than the sum of its proper divisors (13843).

2040257 is a wasteful number, since it uses less digits than its factorization.

2040257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13842.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2040257 is about 1428.3756508706. The cubic root of 2040257 is about 126.8318397687.

Adding to 2040257 its reverse (7520402), we get a palindrome (9560659).

The spelling of 2040257 in words is "two million, forty thousand, two hundred fifty-seven".