140791728 has 120 divisors (see below), whose sum is σ = 457026304. Its totient is φ = 36558720.

The previous prime is 140791711. The next prime is 140791733. The reversal of 140791728 is 827197041.

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, 38925 + ... + 42387.

Almost surely, 2^140791728 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 140791728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228513152).

140791728 is an abundant number, since it is smaller than the sum of its proper divisors (316234576).

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

140791728 is a wasteful number, since it uses less digits than its factorization.

140791728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 140791728 is about 11865.5690129045. The cubic root of 140791728 is about 520.2263905747.

The spelling of 140791728 in words is "one hundred forty million, seven hundred ninety-one thousand, seven hundred twenty-eight".