140231304 has 64 divisors (see below), whose sum is σ = 390744000. Its totient is φ = 46598400.

The previous prime is 140231297. The next prime is 140231323. The reversal of 140231304 is 403132041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85807 + ... + 87425.

It is an arithmetic number, because the mean of its divisors is an integer number (6105375).

Almost surely, 2^140231304 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 140231304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195372000).

140231304 is an abundant number, since it is smaller than the sum of its proper divisors (250512696).

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

140231304 is a wasteful number, since it uses less digits than its factorization.

140231304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140231304 is about 11841.9299102807. The cubic root of 140231304 is about 519.5352158561.

Adding to 140231304 its reverse (403132041), we get a palindrome (543363345).

The spelling of 140231304 in words is "one hundred forty million, two hundred thirty-one thousand, three hundred four".