140398808 has 64 divisors (see below), whose sum is σ = 304197120. Its totient is φ = 60121600.

The previous prime is 140398807. The next prime is 140398859. The reversal of 140398808 is 808893041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140398807) 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, 143216 + ... + 144192.

It is an arithmetic number, because the mean of its divisors is an integer number (4753080).

Almost surely, 2^140398808 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 140398808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152098560).

140398808 is an abundant number, since it is smaller than the sum of its proper divisors (163798312).

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

140398808 is a wasteful number, since it uses less digits than its factorization.

140398808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 140398808 is about 11849.0002953836. Note that the first 3 decimals coincide. The cubic root of 140398808 is about 519.7419923214.

The spelling of 140398808 in words is "one hundred forty million, three hundred ninety-eight thousand, eight hundred eight".