1262115660 has 144 divisors (see below), whose sum is σ = 4028693760. Its totient is φ = 294278400.

The previous prime is 1262115653. The next prime is 1262115677. The reversal of 1262115660 is 665112621.

1262115660 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189385 + ... + 195935.

It is an arithmetic number, because the mean of its divisors is an integer number (27977040).

Almost surely, 2^1262115660 is an apocalyptic number.

1262115660 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 1262115660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014346880).

1262115660 is an abundant number, since it is smaller than the sum of its proper divisors (2766578100).

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

1262115660 is a wasteful number, since it uses less digits than its factorization.

1262115660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608 (or 6593 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1262115660 is about 35526.2671835925. The cubic root of 1262115660 is about 1080.6864805694.

The spelling of 1262115660 in words is "one billion, two hundred sixty-two million, one hundred fifteen thousand, six hundred sixty".