140660344 has 32 divisors (see below), whose sum is σ = 302860800. Its totient is φ = 60570720.

The previous prime is 140660293. The next prime is 140660383. The reversal of 140660344 is 443066041.

It is a happy number.

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, 40392 + ... + 43735.

It is an arithmetic number, because the mean of its divisors is an integer number (9464400).

Almost surely, 2^140660344 is an apocalyptic number.

It is an amenable number.

140660344 is an abundant number, since it is smaller than the sum of its proper divisors (162200456).

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

140660344 is a wasteful number, since it uses less digits than its factorization.

140660344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84163 (or 84159 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 140660344 is about 11860.0313658944. The cubic root of 140660344 is about 520.0645186218.

The spelling of 140660344 in words is "one hundred forty million, six hundred sixty thousand, three hundred forty-four".