140808144 has 80 divisors (see below), whose sum is σ = 394206912. Its totient is φ = 43137024.

The previous prime is 140808133. The next prime is 140808149. The reversal of 140808144 is 441808041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140808149) 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, 33082 + ... + 37094.

Almost surely, 2^140808144 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 140808144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197103456).

140808144 is an abundant number, since it is smaller than the sum of its proper divisors (253398768).

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

140808144 is a wasteful number, since it uses less digits than its factorization.

140808144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084 (or 4078 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 140808144 is about 11866.2607421209. The cubic root of 140808144 is about 520.2466088661.

The spelling of 140808144 in words is "one hundred forty million, eight hundred eight thousand, one hundred forty-four".