140424856 has 48 divisors (see below), whose sum is σ = 311698800. Its totient is φ = 58914240.

The previous prime is 140424841. The next prime is 140424857. The reversal of 140424856 is 658424041.

140424856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7005 + ... + 18163.

It is an arithmetic number, because the mean of its divisors is an integer number (6493725).

Almost surely, 2^140424856 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 140424856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155849400).

140424856 is an abundant number, since it is smaller than the sum of its proper divisors (171273944).

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

140424856 is a wasteful number, since it uses less digits than its factorization.

140424856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11200 (or 11185 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 140424856 is about 11850.0994088657. The cubic root of 140424856 is about 519.7741326757.

Adding to 140424856 its reverse (658424041), we get a palindrome (798848897).

The spelling of 140424856 in words is "one hundred forty million, four hundred twenty-four thousand, eight hundred fifty-six".