140431224 has 32 divisors (see below), whose sum is σ = 363186000. Its totient is φ = 45196032.

The previous prime is 140431219. The next prime is 140431259. The reversal of 140431224 is 422134041.

It is a self number, because there is not a number n which added to its sum of digits gives 140431224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100189 + ... + 101580.

Almost surely, 2^140431224 is an apocalyptic number.

It is an amenable number.

140431224 is an abundant number, since it is smaller than the sum of its proper divisors (222754776).

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

140431224 is a wasteful number, since it uses less digits than its factorization.

140431224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201807 (or 201803 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 140431224 is about 11850.3680955488. The cubic root of 140431224 is about 519.7819894795.

Adding to 140431224 its reverse (422134041), we get a palindrome (562565265).

The spelling of 140431224 in words is "one hundred forty million, four hundred thirty-one thousand, two hundred twenty-four".