1295558940 has 96 divisors (see below), whose sum is σ = 3929599296. Its totient is φ = 317030400.

The previous prime is 1295558923. The next prime is 1295558969. The reversal of 1295558940 is 498555921.

It is a self number, because there is not a number n which added to its sum of digits gives 1295558940.

It is a congruent number.

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, 130140 + ... + 139740.

It is an arithmetic number, because the mean of its divisors is an integer number (40933326).

Almost surely, 2^1295558940 is an apocalyptic number.

1295558940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1295558940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964799648).

1295558940 is an abundant number, since it is smaller than the sum of its proper divisors (2634040356).

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

1295558940 is a wasteful number, since it uses less digits than its factorization.

1295558940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9799 (or 9797 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 48.

The square root of 1295558940 is about 35993.8736453858. The cubic root of 1295558940 is about 1090.1486596893.

The spelling of 1295558940 in words is "one billion, two hundred ninety-five million, five hundred fifty-eight thousand, nine hundred forty".