140344424 has 32 divisors (see below), whose sum is σ = 292494240. Its totient is φ = 62587200.

The previous prime is 140344387. The next prime is 140344433. The reversal of 140344424 is 424443041.

It is a happy number.

140344424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 140344393 and 140344402.

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, 10382 + ... + 19709.

It is an arithmetic number, because the mean of its divisors is an integer number (9140445).

Almost surely, 2^140344424 is an apocalyptic number.

It is an amenable number.

140344424 is an abundant number, since it is smaller than the sum of its proper divisors (152149816).

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

140344424 is a wasteful number, since it uses less digits than its factorization.

140344424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30161 (or 30157 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 140344424 is about 11846.7051959606. The cubic root of 140344424 is about 519.6748756574.

Adding to 140344424 its reverse (424443041), we get a palindrome (564787465).

The spelling of 140344424 in words is "one hundred forty million, three hundred forty-four thousand, four hundred twenty-four".