2587431260 has 24 divisors (see below), whose sum is σ = 5559970416. Its totient is φ = 1010903040.

The previous prime is 2587431257. The next prime is 2587431271. The reversal of 2587431260 is 621347852.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 1503461 + ... + 1505180.

It is an arithmetic number, because the mean of its divisors is an integer number (231665434).

Almost surely, 2^2587431260 is an apocalyptic number.

2587431260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2587431260 is an abundant number, since it is smaller than the sum of its proper divisors (2972539156).

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

2587431260 is a wasteful number, since it uses less digits than its factorization.

2587431260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008693 (or 3008691 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 2587431260 is about 50866.7991916142. The cubic root of 2587431260 is about 1372.8495327990.

The spelling of 2587431260 in words is "two billion, five hundred eighty-seven million, four hundred thirty-one thousand, two hundred sixty".