140224440 has 32 divisors (see below), whose sum is σ = 420673680. Its totient is φ = 37393152.

The previous prime is 140224397. The next prime is 140224457. The reversal of 140224440 is 44422041.

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, 584149 + ... + 584388.

Almost surely, 2^140224440 is an apocalyptic number.

140224440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140224440 is an abundant number, since it is smaller than the sum of its proper divisors (280449240).

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

140224440 is a wasteful number, since it uses less digits than its factorization.

140224440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168551 (or 1168547 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 140224440 is about 11841.6400891093. The cubic root of 140224440 is about 519.5267390329.

Adding to 140224440 its reverse (44422041), we get a palindrome (184646481).

The spelling of 140224440 in words is "one hundred forty million, two hundred twenty-four thousand, four hundred forty".