140323286 has 32 divisors (see below), whose sum is σ = 223292160. Its totient is φ = 66042144.

The previous prime is 140323273. The next prime is 140323289. The reversal of 140323286 is 682323041.

140323286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140323289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495701 + ... + 495983.

It is an arithmetic number, because the mean of its divisors is an integer number (6977880).

Almost surely, 2^140323286 is an apocalyptic number.

140323286 is a deficient number, since it is larger than the sum of its proper divisors (82968874).

140323286 is a wasteful number, since it uses less digits than its factorization.

140323286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 140323286 is about 11845.8130155764. The cubic root of 140323286 is about 519.6487840399.

The spelling of 140323286 in words is "one hundred forty million, three hundred twenty-three thousand, two hundred eighty-six".