140628626 has 8 divisors (see below), whose sum is σ = 211079820. Its totient is φ = 70268688.

The previous prime is 140628599. The next prime is 140628629. The reversal of 140628626 is 626826041.

140628626 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 119880601 + 20748025 = 10949^2 + 4555^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (140628629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18821 + ... + 25208.

Almost surely, 2^140628626 is an apocalyptic number.

140628626 is a deficient number, since it is larger than the sum of its proper divisors (70451194).

140628626 is a wasteful number, since it uses less digits than its factorization.

140628626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45628.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 140628626 is about 11858.6941102298. The cubic root of 140628626 is about 520.0254252854.

The spelling of 140628626 in words is "one hundred forty million, six hundred twenty-eight thousand, six hundred twenty-six".