1375663488 has 256 divisors, whose sum is σ = 4071513600. Its totient is φ = 410009600.

The previous prime is 1375663463. The next prime is 1375663489. The reversal of 1375663488 is 8843665731.

It is a super-2 number, since 2×1375663488² = 3784900064432652288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1375663488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375663489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10501183 + ... + 10501313.

It is an arithmetic number, because the mean of its divisors is an integer number (15904350).

Almost surely, 2^1375663488 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 1375663488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2035756800).

1375663488 is an abundant number, since it is smaller than the sum of its proper divisors (2695850112).

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

1375663488 is a wasteful number, since it uses less digits than its factorization.

1375663488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 229 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The square root of 1375663488 is about 37089.9378268554. The cubic root of 1375663488 is about 1112.1688752028.

The spelling of 1375663488 in words is "one billion, three hundred seventy-five million, six hundred sixty-three thousand, four hundred eighty-eight".