140330838 has 16 divisors (see below), whose sum is σ = 281663856. Its totient is φ = 46609920.

The previous prime is 140330833. The next prime is 140330849. The reversal of 140330838 is 838033041.

140330838 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 (140330833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39931 + ... + 43302.

It is an arithmetic number, because the mean of its divisors is an integer number (17603991).

Almost surely, 2^140330838 is an apocalyptic number.

140330838 is an abundant number, since it is smaller than the sum of its proper divisors (141333018).

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

140330838 is a wasteful number, since it uses less digits than its factorization.

140330838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83519.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 140330838 is about 11846.1317737057. The cubic root of 140330838 is about 519.6581061259.

Adding to 140330838 its reverse (838033041), we get a palindrome (978363879).

The spelling of 140330838 in words is "one hundred forty million, three hundred thirty thousand, eight hundred thirty-eight".