140408328 has 64 divisors (see below), whose sum is σ = 370944000. Its totient is φ = 44165952.

The previous prime is 140408327. The next prime is 140408351. The reversal of 140408328 is 823804041.

It is a junction number, because it is equal to n+sod(n) for n = 140408295 and 140408304.

It is not an unprimeable number, because it can be changed into a prime (140408327) 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, 166933 + ... + 167771.

It is an arithmetic number, because the mean of its divisors is an integer number (5796000).

Almost surely, 2^140408328 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 140408328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185472000).

140408328 is an abundant number, since it is smaller than the sum of its proper divisors (230535672).

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

140408328 is a wasteful number, since it uses less digits than its factorization.

140408328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 140408328 is about 11849.4020102282. The cubic root of 140408328 is about 519.7537394106.

The spelling of 140408328 in words is "one hundred forty million, four hundred eight thousand, three hundred twenty-eight".