140431332 has 12 divisors (see below), whose sum is σ = 327673136. Its totient is φ = 46810440.

The previous prime is 140431327. The next prime is 140431367. The reversal of 140431332 is 233134041.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 140431299 and 140431308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5851294 + ... + 5851317.

Almost surely, 2^140431332 is an apocalyptic number.

140431332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140431332 is an abundant number, since it is smaller than the sum of its proper divisors (187241804).

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

140431332 is a wasteful number, since it uses less digits than its factorization.

140431332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11702618 (or 11702616 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 140431332 is about 11850.3726523684. The cubic root of 140431332 is about 519.7821227273.

Adding to 140431332 its reverse (233134041), we get a palindrome (373565373).

The spelling of 140431332 in words is "one hundred forty million, four hundred thirty-one thousand, three hundred thirty-two".