1260985800 has 96 divisors (see below), whose sum is σ = 3956309280. Its totient is φ = 332198400.

The previous prime is 1260985799. The next prime is 1260985811. The reversal of 1260985800 is 85890621.

1260985800 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37140 + ... + 62460.

It is an arithmetic number, because the mean of its divisors is an integer number (41211555).

Almost surely, 2^1260985800 is an apocalyptic number.

1260985800 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 1260985800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1978154640).

1260985800 is an abundant number, since it is smaller than the sum of its proper divisors (2695323480).

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

1260985800 is a wasteful number, since it uses less digits than its factorization.

1260985800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25423 (or 25414 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1260985800 is about 35510.3618680520. The cubic root of 1260985800 is about 1080.3639034329.

The spelling of 1260985800 in words is "one billion, two hundred sixty million, nine hundred eighty-five thousand, eight hundred".