2540137290 has 32 divisors (see below), whose sum is σ = 6110505216. Its totient is φ = 675794880.

The previous prime is 2540137261. The next prime is 2540137309. The reversal of 2540137290 is 927310452.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85297 + ... + 111156.

It is an arithmetic number, because the mean of its divisors is an integer number (190953288).

Almost surely, 2^2540137290 is an apocalyptic number.

2540137290 is an abundant number, since it is smaller than the sum of its proper divisors (3570367926).

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

2540137290 is a wasteful number, since it uses less digits than its factorization.

2540137290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196894.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2540137290 is about 50399.7747018774. The cubic root of 2540137290 is about 1364.4335719588.

The spelling of 2540137290 in words is "two billion, five hundred forty million, one hundred thirty-seven thousand, two hundred ninety".