2540423140 has 48 divisors (see below), whose sum is σ = 5702659200. Its totient is φ = 948273920.

The previous prime is 2540423131. The next prime is 2540423159. The reversal of 2540423140 is 413240452.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 48490 + ... + 86209.

It is an arithmetic number, because the mean of its divisors is an integer number (118805400).

Almost surely, 2^2540423140 is an apocalyptic number.

2540423140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540423140 is an abundant number, since it is smaller than the sum of its proper divisors (3162236060).

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

2540423140 is a wasteful number, since it uses less digits than its factorization.

2540423140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134772 (or 134770 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2540423140 is about 50402.6104482694. The cubic root of 2540423140 is about 1364.4847514376.

Adding to 2540423140 its reverse (413240452), we get a palindrome (2953663592).

The spelling of 2540423140 in words is "two billion, five hundred forty million, four hundred twenty-three thousand, one hundred forty".