1288498376 has 64 divisors (see below), whose sum is σ = 2781000000. Its totient is φ = 553512960.

The previous prime is 1288498369. The next prime is 1288498427. The reversal of 1288498376 is 6738948821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031000 + ... + 1032248.

It is an arithmetic number, because the mean of its divisors is an integer number (43453125).

Almost surely, 2^1288498376 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 1288498376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1390500000).

1288498376 is an abundant number, since it is smaller than the sum of its proper divisors (1492501624).

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

1288498376 is a wasteful number, since it uses less digits than its factorization.

1288498376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1898 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The square root of 1288498376 is about 35895.6595704829. The cubic root of 1288498376 is about 1088.1646796036.

The spelling of 1288498376 in words is "one billion, two hundred eighty-eight million, four hundred ninety-eight thousand, three hundred seventy-six".