140728768 has 14 divisors (see below), whose sum is σ = 279258776. Its totient is φ = 70364352.

The previous prime is 140728751. The next prime is 140728781. The reversal of 140728768 is 867827041.

140728768 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140728768² = 39609172285595648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099380 + ... + 1099507.

Almost surely, 2^140728768 is an apocalyptic number.

It is an amenable number.

140728768 is a deficient number, since it is larger than the sum of its proper divisors (138530008).

140728768 is an equidigital number, since it uses as much as digits as its factorization.

140728768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198899 (or 2198889 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 140728768 is about 11862.9156618430. The cubic root of 140728768 is about 520.1488331369.

The spelling of 140728768 in words is "one hundred forty million, seven hundred twenty-eight thousand, seven hundred sixty-eight".