1391119488 has 512 divisors, whose sum is σ = 4911667200. Its totient is φ = 383201280.

The previous prime is 1391119441. The next prime is 1391119507. The reversal of 1391119488 is 8849111931.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32351595 + ... + 32351637.

It is an arithmetic number, because the mean of its divisors is an integer number (9593100).

Almost surely, 2^1391119488 is an apocalyptic number.

1391119488 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 1391119488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2455833600).

1391119488 is an abundant number, since it is smaller than the sum of its proper divisors (3520547712).

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

1391119488 is a wasteful number, since it uses less digits than its factorization.

1391119488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 119 counting only the distinct ones).

The product of its digits is 62208, while the sum is 45.

The square root of 1391119488 is about 37297.7142463181. The cubic root of 1391119488 is about 1116.3185586147.

The spelling of 1391119488 in words is "one billion, three hundred ninety-one million, one hundred nineteen thousand, four hundred eighty-eight".