140032224 has 36 divisors (see below), whose sum is σ = 398217456. Its totient is φ = 46677312.

The previous prime is 140032187. The next prime is 140032253. The reversal of 140032224 is 422230041.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140032197 and 140032206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 242824 + ... + 243399.

It is an arithmetic number, because the mean of its divisors is an integer number (11061596).

Almost surely, 2^140032224 is an apocalyptic number.

It is an amenable number.

140032224 is an abundant number, since it is smaller than the sum of its proper divisors (258185232).

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

140032224 is a wasteful number, since it uses less digits than its factorization.

140032224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486239 (or 486228 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 140032224 is about 11833.5212003866. The cubic root of 140032224 is about 519.2892459218.

Adding to 140032224 its reverse (422230041), we get a palindrome (562262265).

The spelling of 140032224 in words is "one hundred forty million, thirty-two thousand, two hundred twenty-four".