628018 has 8 divisors (see below), whose sum is σ = 951660. Its totient is φ = 310800.

The previous prime is 628013. The next prime is 628021. The reversal of 628018 is 810826.

It can be written as a sum of positive squares in 2 ways, for example, as 619369 + 8649 = 787^2 + 93^2 .

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

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 627983 and 628001.

It is not an unprimeable number, because it can be changed into a prime (628013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353 + ... + 1756.

2⁶²⁸⁰¹⁸ is an apocalyptic number.

628018 is a deficient number, since it is larger than the sum of its proper divisors (323642).

628018 is a wasteful number, since it uses less digits than its factorization.

628018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 628018 is about 792.4758671404. The cubic root of 628018 is about 85.6361952790.

The spelling of 628018 in words is "six hundred twenty-eight thousand, eighteen".