140030628 has 24 divisors (see below), whose sum is σ = 330677088. Its totient is φ = 46114176.

The previous prime is 140030609. The next prime is 140030677. The reversal of 140030628 is 826030041.

It is a happy number.

140030628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 140030598 and 140030607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69301 + ... + 71292.

It is an arithmetic number, because the mean of its divisors is an integer number (13778212).

Almost surely, 2^140030628 is an apocalyptic number.

It is an amenable number.

140030628 is an abundant number, since it is smaller than the sum of its proper divisors (190646460).

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

140030628 is a wasteful number, since it uses less digits than its factorization.

140030628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140683 (or 140681 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 140030628 is about 11833.4537646454. The cubic root of 140030628 is about 519.2872730692.

Adding to 140030628 its reverse (826030041), we get a palindrome (966060669).

The spelling of 140030628 in words is "one hundred forty million, thirty thousand, six hundred twenty-eight".