140442224 has 40 divisors (see below), whose sum is σ = 308469840. Its totient is φ = 61406208.

The previous prime is 140442223. The next prime is 140442229. The reversal of 140442224 is 422244041.

It is a self number, because there is not a number n which added to its sum of digits gives 140442224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140442221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13817 + ... + 21720.

It is an arithmetic number, because the mean of its divisors is an integer number (7711746).

Almost surely, 2^140442224 is an apocalyptic number.

It is an amenable number.

140442224 is an abundant number, since it is smaller than the sum of its proper divisors (168027616).

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

140442224 is a wasteful number, since it uses less digits than its factorization.

140442224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35577 (or 35571 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 140442224 is about 11850.8322070646. The cubic root of 140442224 is about 519.7955606603.

Adding to 140442224 its reverse (422244041), we get a palindrome (562686265).

The spelling of 140442224 in words is "one hundred forty million, four hundred forty-two thousand, two hundred twenty-four".