140243632 has 20 divisors (see below), whose sum is σ = 272895480. Its totient is φ = 69819008.

The previous prime is 140243603. The next prime is 140243639. The reversal of 140243632 is 236342041.

140243632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 140243597 and 140243606.

It is not an unprimeable number, because it can be changed into a prime (140243639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15082 + ... + 22537.

It is an arithmetic number, because the mean of its divisors is an integer number (13644774).

Almost surely, 2^140243632 is an apocalyptic number.

It is an amenable number.

140243632 is a deficient number, since it is larger than the sum of its proper divisors (132651848).

140243632 is a wasteful number, since it uses less digits than its factorization.

140243632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37860 (or 37854 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 140243632 is about 11842.4504221044. The cubic root of 140243632 is about 519.5504398522.

Adding to 140243632 its reverse (236342041), we get a palindrome (376585673).

The spelling of 140243632 in words is "one hundred forty million, two hundred forty-three thousand, six hundred thirty-two".