1260889328 has 40 divisors (see below), whose sum is σ = 2475660000. Its totient is φ = 622059264.

The previous prime is 1260889327. The next prime is 1260889363. The reversal of 1260889328 is 8239880621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260889327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457298 + ... + 460046.

It is an arithmetic number, because the mean of its divisors is an integer number (61891500).

Almost surely, 2^1260889328 is an apocalyptic number.

It is an amenable number.

1260889328 is a deficient number, since it is larger than the sum of its proper divisors (1214770672).

1260889328 is a wasteful number, since it uses less digits than its factorization.

1260889328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 1260889328 is about 35509.0034779913. The cubic root of 1260889328 is about 1080.3363515698.

The spelling of 1260889328 in words is "one billion, two hundred sixty million, eight hundred eighty-nine thousand, three hundred twenty-eight".