140331424 has 12 divisors (see below), whose sum is σ = 276277554. Its totient is φ = 70165696.

The previous prime is 140331421. The next prime is 140331431. The reversal of 140331424 is 424133041.

It can be written as a sum of positive squares in only one way, i.e., 117939600 + 22391824 = 10860^2 + 4732^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140331395 and 140331404.

It is not an unprimeable number, because it can be changed into a prime (140331421) by changing a digit.

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 as a sum of consecutive naturals, namely, 2192647 + ... + 2192710.

Almost surely, 2^140331424 is an apocalyptic number.

It is an amenable number.

140331424 is a deficient number, since it is larger than the sum of its proper divisors (135946130).

140331424 is an equidigital number, since it uses as much as digits as its factorization.

140331424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385367 (or 4385359 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 140331424 is about 11846.1565074922. The cubic root of 140331424 is about 519.6588294624.

Adding to 140331424 its reverse (424133041), we get a palindrome (564464465).

The spelling of 140331424 in words is "one hundred forty million, three hundred thirty-one thousand, four hundred twenty-four".