2540688370 has 32 divisors (see below), whose sum is σ = 4992554880. Its totient is φ = 923226240.

The previous prime is 2540688343. The next prime is 2540688377. The reversal of 2540688370 is 738860452.

It is a super-3 number, since 3×2540688370³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2540688377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162246 + ... + 177214.

It is an arithmetic number, because the mean of its divisors is an integer number (156017340).

Almost surely, 2^2540688370 is an apocalyptic number.

2540688370 is a deficient number, since it is larger than the sum of its proper divisors (2451866510).

2540688370 is a wasteful number, since it uses less digits than its factorization.

2540688370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16530.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 2540688370 is about 50405.2414933209. The cubic root of 2540688370 is about 1364.5322356133.

The spelling of 2540688370 in words is "two billion, five hundred forty million, six hundred eighty-eight thousand, three hundred seventy".