1295987588 has 96 divisors (see below), whose sum is σ = 2858333184. Its totient is φ = 501516288.

The previous prime is 1295987579. The next prime is 1295987591. The reversal of 1295987588 is 8857895921.

It is a self number, because there is not a number n which added to its sum of digits gives 1295987588.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1185170 + ... + 1186262.

It is an arithmetic number, because the mean of its divisors is an integer number (29774304).

Almost surely, 2^1295987588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1295987588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429166592).

1295987588 is an abundant number, since it is smaller than the sum of its proper divisors (1562345596).

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

1295987588 is a wasteful number, since it uses less digits than its factorization.

1295987588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1219 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 62.

The square root of 1295987588 is about 35999.8276106984. The cubic root of 1295987588 is about 1090.2688751171.

The spelling of 1295987588 in words is "one billion, two hundred ninety-five million, nine hundred eighty-seven thousand, five hundred eighty-eight".