2540742282 has 96 divisors (see below), whose sum is σ = 6436036800. Its totient is φ = 740570688.

The previous prime is 2540742277. The next prime is 2540742283. The reversal of 2540742282 is 2822470452.

2540742282 is a `hidden beast` number, since 25 + 407 + 4 + 228 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (2540742283) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166068 + ... + 180720.

It is an arithmetic number, because the mean of its divisors is an integer number (67042050).

Almost surely, 2^2540742282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540742282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3218018400).

2540742282 is an abundant number, since it is smaller than the sum of its proper divisors (3895294518).

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

2540742282 is a wasteful number, since it uses less digits than its factorization.

2540742282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14709 (or 14690 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 2540742282 is about 50405.7762761372. The cubic root of 2540742282 is about 1364.5418870845.

The spelling of 2540742282 in words is "two billion, five hundred forty million, seven hundred forty-two thousand, two hundred eighty-two".