2040145506 has 24 divisors (see below), whose sum is σ = 5051789184. Its totient is φ = 582898680.

The previous prime is 2040145493. The next prime is 2040145531. The reversal of 2040145506 is 6055410402.

2040145506 is a `hidden beast` number, since 204 + 0 + 1 + 455 + 0 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2040145506.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8095690 + ... + 8095941.

It is an arithmetic number, because the mean of its divisors is an integer number (210491216).

Almost surely, 2^2040145506 is an apocalyptic number.

2040145506 is an abundant number, since it is smaller than the sum of its proper divisors (3011643678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2040145506 is a wasteful number, since it uses less digits than its factorization.

2040145506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191646 (or 16191643 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2040145506 is about 45167.9699123173. The cubic root of 2040145506 is about 1268.2952939855.

Adding to 2040145506 its reverse (6055410402), we get a palindrome (8095555908).

The spelling of 2040145506 in words is "two billion, forty million, one hundred forty-five thousand, five hundred six".