139776768 has 216 divisors, whose sum is σ = 442158080. Its totient is φ = 42301440.

The previous prime is 139776757. The next prime is 139776809. The reversal of 139776768 is 867677931.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1357005 + ... + 1357107.

Almost surely, 2^139776768 is an apocalyptic number.

139776768 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 139776768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221079040).

139776768 is an abundant number, since it is smaller than the sum of its proper divisors (302381312).

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

139776768 is a wasteful number, since it uses less digits than its factorization.

139776768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 158 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 139776768 is about 11822.7225290962. The cubic root of 139776768 is about 518.9732798343.

The spelling of 139776768 in words is "one hundred thirty-nine million, seven hundred seventy-six thousand, seven hundred sixty-eight".