2040506 has 12 divisors (see below), whose sum is σ = 3314862. Its totient is φ = 941616.

The previous prime is 2040497. The next prime is 2040539. The reversal of 2040506 is 6050402.

It can be written as a sum of positive squares in 3 ways, for example, as 697225 + 1343281 = 835^2 + 1159^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2681 + ... + 3356.

2^2040506 is an apocalyptic number.

2040506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2040506 is a deficient number, since it is larger than the sum of its proper divisors (1274356).

2040506 is a wasteful number, since it uses less digits than its factorization.

2040506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065 (or 6052 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2040506 is about 1428.4628101564. The cubic root of 2040506 is about 126.8369992239.

Adding to 2040506 its reverse (6050402), we get a palindrome (8090908).

The spelling of 2040506 in words is "two million, forty thousand, five hundred six".