2540388286 has 4 divisors (see below), whose sum is σ = 3810582432. Its totient is φ = 1270194142.

The previous prime is 2540388241. The next prime is 2540388299. The reversal of 2540388286 is 6828830452.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635097070 + ... + 635097073.

It is an arithmetic number, because the mean of its divisors is an integer number (952645608).

Almost surely, 2^2540388286 is an apocalyptic number.

2540388286 is a deficient number, since it is larger than the sum of its proper divisors (1270194146).

2540388286 is a wasteful number, since it uses less digits than its factorization.

2540388286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270194145.

The product of its (nonzero) digits is 737280, while the sum is 46.

The square root of 2540388286 is about 50402.2646911823. The cubic root of 2540388286 is about 1364.4785112738.

The spelling of 2540388286 in words is "two billion, five hundred forty million, three hundred eighty-eight thousand, two hundred eighty-six".