1260889344 has 432 divisors, whose sum is σ = 4419455040. Its totient is φ = 340623360.

The previous prime is 1260889327. The next prime is 1260889363. The reversal of 1260889344 is 4439880621.

It is a happy number.

1260889344 is a `hidden beast` number, since 1 + 2 + 608 + 8 + 9 + 34 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1260889344.

It is a congruent number.

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, 14167252 + ... + 14167340.

It is an arithmetic number, because the mean of its divisors is an integer number (10230220).

Almost surely, 2^1260889344 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 1260889344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2209727520).

1260889344 is an abundant number, since it is smaller than the sum of its proper divisors (3158565696).

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

1260889344 is a wasteful number, since it uses less digits than its factorization.

1260889344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1260889344 is about 35509.0037032863. The cubic root of 1260889344 is about 1080.3363561394.

The spelling of 1260889344 in words is "one billion, two hundred sixty million, eight hundred eighty-nine thousand, three hundred forty-four".