2540031606 has 96 divisors (see below), whose sum is σ = 6643503360. Its totient is φ = 685153728.

The previous prime is 2540031601. The next prime is 2540031617. The reversal of 2540031606 is 6061300452.

2540031606 is a `hidden beast` number, since 2 + 54 + 0 + 0 + 3 + 1 + 606 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2540031606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540031601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 757225 + ... + 760571.

It is an arithmetic number, because the mean of its divisors is an integer number (69203160).

Almost surely, 2^2540031606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540031606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3321751680).

2540031606 is an abundant number, since it is smaller than the sum of its proper divisors (4103471754).

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

2540031606 is a wasteful number, since it uses less digits than its factorization.

2540031606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2540031606 is about 50398.7262339040. The cubic root of 2540031606 is about 1364.4146489925.

The spelling of 2540031606 in words is "two billion, five hundred forty million, thirty-one thousand, six hundred six".