140432 has 20 divisors (see below), whose sum is σ = 278256. Its totient is φ = 68640.

The previous prime is 140423. The next prime is 140443. The reversal of 140432 is 234041.

It is a super-2 number, since 2×140432² = 39442293248, which contains 22 as substring.

It is a nialpdrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140432.

It is an unprimeable number.

140432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007 + ... + 1137.

2¹⁴⁰⁴³² is an apocalyptic number.

It is an amenable number.

140432 is a deficient number, since it is larger than the sum of its proper divisors (137824).

140432 is a wasteful number, since it uses less digits than its factorization.

140432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 140432 is about 374.7425783121. The cubic root of 140432 is about 51.9782946888.

Adding to 140432 its reverse (234041), we get a palindrome (374473).

The spelling of 140432 in words is "one hundred forty thousand, four hundred thirty-two".