1260389248 has 64 divisors (see below), whose sum is σ = 2667157200. Its totient is φ = 591224832.

The previous prime is 1260389243. The next prime is 1260389257. The reversal of 1260389248 is 8429830621.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260389243) 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, 863143 + ... + 864601.

Almost surely, 2^1260389248 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 1260389248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1333578600).

1260389248 is an abundant number, since it is smaller than the sum of its proper divisors (1406767952).

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

1260389248 is a wasteful number, since it uses less digits than its factorization.

1260389248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 1260389248 is about 35501.9611852641. The cubic root of 1260389248 is about 1080.1935089931.

The spelling of 1260389248 in words is "one billion, two hundred sixty million, three hundred eighty-nine thousand, two hundred forty-eight".