140323736 has 32 divisors (see below), whose sum is σ = 313770240. Its totient is φ = 57523488.

The previous prime is 140323699. The next prime is 140323741. The reversal of 140323736 is 637323041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140323699 and 140323708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53186 + ... + 55761.

It is an arithmetic number, because the mean of its divisors is an integer number (9805320).

Almost surely, 2^140323736 is an apocalyptic number.

It is an amenable number.

140323736 is an abundant number, since it is smaller than the sum of its proper divisors (173446504).

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

140323736 is a wasteful number, since it uses less digits than its factorization.

140323736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108983 (or 108979 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 140323736 is about 11845.8320096142. The cubic root of 140323736 is about 519.6493395232.

Adding to 140323736 its reverse (637323041), we get a palindrome (777646777).

The spelling of 140323736 in words is "one hundred forty million, three hundred twenty-three thousand, seven hundred thirty-six".