140028208 has 20 divisors (see below), whose sum is σ = 271501720. Its totient is φ = 69963264.

The previous prime is 140028199. The next prime is 140028227. The reversal of 140028208 is 802820041.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30103 + ... + 34441.

It is an arithmetic number, because the mean of its divisors is an integer number (13575086).

Almost surely, 2^140028208 is an apocalyptic number.

It is an amenable number.

140028208 is a deficient number, since it is larger than the sum of its proper divisors (131473512).

140028208 is a wasteful number, since it uses less digits than its factorization.

140028208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364 (or 6358 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 140028208 is about 11833.3515117231. The cubic root of 140028208 is about 519.2842816226.

Adding to 140028208 its reverse (802820041), we get a palindrome (942848249).

The spelling of 140028208 in words is "one hundred forty million, twenty-eight thousand, two hundred eight".