140008044 has 48 divisors (see below), whose sum is σ = 357799680. Its totient is φ = 42258240.

The previous prime is 140008031. The next prime is 140008049. The reversal of 140008044 is 440800041.

It is a self number, because there is not a number n which added to its sum of digits gives 140008044.

It is not an unprimeable number, because it can be changed into a prime (140008049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33537 + ... + 37479.

It is an arithmetic number, because the mean of its divisors is an integer number (7454160).

Almost surely, 2^140008044 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 140008044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178899840).

140008044 is an abundant number, since it is smaller than the sum of its proper divisors (217791636).

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

140008044 is a wasteful number, since it uses less digits than its factorization.

140008044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230 (or 4228 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 140008044 is about 11832.4994823579. The cubic root of 140008044 is about 519.2593548572.

Adding to 140008044 its reverse (440800041), we get a palindrome (580808085).

The spelling of 140008044 in words is "one hundred forty million, eight thousand, forty-four".