140439724 has 12 divisors (see below), whose sum is σ = 247018464. Its totient is φ = 69863024.

The previous prime is 140439709. The next prime is 140439757. The reversal of 140439724 is 427934041.

It is a happy number.

140439724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 140439724.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88324 + ... + 89899.

It is an arithmetic number, because the mean of its divisors is an integer number (20584872).

Almost surely, 2^140439724 is an apocalyptic number.

It is an amenable number.

140439724 is a deficient number, since it is larger than the sum of its proper divisors (106578740).

140439724 is a wasteful number, since it uses less digits than its factorization.

140439724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178424 (or 178422 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 140439724 is about 11850.7267287707. The cubic root of 140439724 is about 519.7924763633.

The spelling of 140439724 in words is "one hundred forty million, four hundred thirty-nine thousand, seven hundred twenty-four".