140505888 has 72 divisors (see below), whose sum is σ = 381359664. Its totient is φ = 45294720.

The previous prime is 140505881. The next prime is 140505907. The reversal of 140505888 is 888505041.

140505888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140505881) 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, 91495 + ... + 93017.

It is an arithmetic number, because the mean of its divisors is an integer number (5296662).

Almost surely, 2^140505888 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 140505888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190679832).

140505888 is an abundant number, since it is smaller than the sum of its proper divisors (240853776).

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

140505888 is a wasteful number, since it uses less digits than its factorization.

140505888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598 (or 1559 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 140505888 is about 11853.5179588171. The cubic root of 140505888 is about 519.8740918041.

The spelling of 140505888 in words is "one hundred forty million, five hundred five thousand, eight hundred eighty-eight".