1287007488 has 144 divisors (see below), whose sum is σ = 4098955840. Its totient is φ = 395974656.

The previous prime is 1287007483. The next prime is 1287007517. The reversal of 1287007488 is 8847007821.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287007483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82695 + ... + 97017.

Almost surely, 2^1287007488 is an apocalyptic number.

1287007488 is a gapful number since it is divisible by the number (18) 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 1287007488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049477920).

1287007488 is an abundant number, since it is smaller than the sum of its proper divisors (2811948352).

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

1287007488 is a wasteful number, since it uses less digits than its factorization.

1287007488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14361 (or 14341 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The square root of 1287007488 is about 35874.8865921552. The cubic root of 1287007488 is about 1087.7448219318.

The spelling of 1287007488 in words is "one billion, two hundred eighty-seven million, seven thousand, four hundred eighty-eight".