140331224 has 32 divisors (see below), whose sum is σ = 288368640. Its totient is φ = 63492000.

The previous prime is 140331223. The next prime is 140331239. The reversal of 140331224 is 422133041.

It is a junction number, because it is equal to n+sod(n) for n = 140331196 and 140331205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140331223) 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, 16049 + ... + 23199.

It is an arithmetic number, because the mean of its divisors is an integer number (9011520).

Almost surely, 2^140331224 is an apocalyptic number.

It is an amenable number.

140331224 is an abundant number, since it is smaller than the sum of its proper divisors (148037416).

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

140331224 is a wasteful number, since it uses less digits than its factorization.

140331224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7391 (or 7387 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 140331224 is about 11846.1480659327. The cubic root of 140331224 is about 519.6585825901.

Adding to 140331224 its reverse (422133041), we get a palindrome (562464265).

The spelling of 140331224 in words is "one hundred forty million, three hundred thirty-one thousand, two hundred twenty-four".