2540274920 has 128 divisors (see below), whose sum is σ = 6158592000. Its totient is φ = 940181760.

The previous prime is 2540274887. The next prime is 2540274959. The reversal of 2540274920 is 294720452.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9658709 + ... + 9658971.

It is an arithmetic number, because the mean of its divisors is an integer number (48114000).

Almost surely, 2^2540274920 is an apocalyptic number.

2540274920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540274920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3079296000).

2540274920 is an abundant number, since it is smaller than the sum of its proper divisors (3618317080).

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

2540274920 is a wasteful number, since it uses less digits than its factorization.

2540274920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2540274920 is about 50401.1400664707. The cubic root of 2540274920 is about 1364.4582141441.

The spelling of 2540274920 in words is "two billion, five hundred forty million, two hundred seventy-four thousand, nine hundred twenty".