140241452728 has 32 divisors (see below), whose sum is σ = 284020223760. Its totient is φ = 64534740480.

The previous prime is 140241452711. The next prime is 140241452753. The reversal of 140241452728 is 827254142041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1965658 + ... + 2035753.

Almost surely, 2^140241452728 is an apocalyptic number.

It is an amenable number.

140241452728 is an abundant number, since it is smaller than the sum of its proper divisors (143778771032).

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

140241452728 is a wasteful number, since it uses less digits than its factorization.

140241452728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001767 (or 4001763 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

Adding to 140241452728 its reverse (827254142041), we get a palindrome (967495594769).

The spelling of 140241452728 in words is "one hundred forty billion, two hundred forty-one million, four hundred fifty-two thousand, seven hundred twenty-eight".