2540183240 has 32 divisors (see below), whose sum is σ = 6531900480. Its totient is φ = 870919872.

The previous prime is 2540183189. The next prime is 2540183251. The reversal of 2540183240 is 423810452.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4535762 + ... + 4536321.

It is an arithmetic number, because the mean of its divisors is an integer number (204121890).

Almost surely, 2^2540183240 is an apocalyptic number.

2540183240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540183240 is an abundant number, since it is smaller than the sum of its proper divisors (3991717240).

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

2540183240 is a wasteful number, since it uses less digits than its factorization.

2540183240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072101 (or 9072097 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 2540183240 is about 50400.2305550282. The cubic root of 2540183240 is about 1364.4417992496.

Adding to 2540183240 its reverse (423810452), we get a palindrome (2963993692).

The spelling of 2540183240 in words is "two billion, five hundred forty million, one hundred eighty-three thousand, two hundred forty".