2540339218 has 8 divisors (see below), whose sum is σ = 3820564080. Its totient is φ = 1266817860.

The previous prime is 2540339203. The next prime is 2540339239. The reversal of 2540339218 is 8129330452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674928 + ... + 1676443.

It is an arithmetic number, because the mean of its divisors is an integer number (477570510).

Almost surely, 2^2540339218 is an apocalyptic number.

2540339218 is a deficient number, since it is larger than the sum of its proper divisors (1280224862).

2540339218 is a wasteful number, since it uses less digits than its factorization.

2540339218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351752.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 2540339218 is about 50401.7779249899. Note that the first 3 decimals coincide. The cubic root of 2540339218 is about 1364.4697261781.

The spelling of 2540339218 in words is "two billion, five hundred forty million, three hundred thirty-nine thousand, two hundred eighteen".