140023344 has 80 divisors (see below), whose sum is σ = 371628000. Its totient is φ = 45416448.

The previous prime is 140023327. The next prime is 140023381. The reversal of 140023344 is 443320041.

It is a self number, because there is not a number n which added to its sum of digits gives 140023344.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311632 + ... + 312080.

It is an arithmetic number, because the mean of its divisors is an integer number (4645350).

Almost surely, 2^140023344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140023344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185814000).

140023344 is an abundant number, since it is smaller than the sum of its proper divisors (231604656).

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

140023344 is a wasteful number, since it uses less digits than its factorization.

140023344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 140023344 is about 11833.1459891273. The cubic root of 140023344 is about 519.2782689579.

Adding to 140023344 its reverse (443320041), we get a palindrome (583343385).

The spelling of 140023344 in words is "one hundred forty million, twenty-three thousand, three hundred forty-four".