140502768 has 80 divisors (see below), whose sum is σ = 432877056. Its totient is φ = 38396160.

The previous prime is 140502763. The next prime is 140502779. The reversal of 140502768 is 867205041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140502763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1363 + ... + 16818.

Almost surely, 2^140502768 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 140502768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216438528).

140502768 is an abundant number, since it is smaller than the sum of its proper divisors (292374288).

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

140502768 is a wasteful number, since it uses less digits than its factorization.

140502768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18222 (or 18216 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 140502768 is about 11853.3863515875. The cubic root of 140502768 is about 519.8702437586.

The spelling of 140502768 in words is "one hundred forty million, five hundred two thousand, seven hundred sixty-eight".