1292255760 has 160 divisors (see below), whose sum is σ = 4101166080. Its totient is φ = 336500224.

The previous prime is 1292255707. The next prime is 1292255761. The reversal of 1292255760 is 675522921.

It is not an unprimeable number, because it can be changed into a prime (1292255761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3723907 + ... + 3724253.

It is an arithmetic number, because the mean of its divisors is an integer number (25632288).

Almost surely, 2^1292255760 is an apocalyptic number.

1292255760 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 1292255760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2050583040).

1292255760 is an abundant number, since it is smaller than the sum of its proper divisors (2808910320).

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

1292255760 is a wasteful number, since it uses less digits than its factorization.

1292255760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1292255760 is about 35947.9590519406. The cubic root of 1292255760 is about 1089.2213837378.

The spelling of 1292255760 in words is "one billion, two hundred ninety-two million, two hundred fifty-five thousand, seven hundred sixty".