628142 has 8 divisors (see below), whose sum is σ = 950016. Its totient is φ = 311472.

The previous prime is 628139. The next prime is 628171. The reversal of 628142 is 241826.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628142.

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 3 ways as a sum of consecutive naturals, for example, 983 + ... + 1490.

It is an arithmetic number, because the mean of its divisors is an integer number (118752).

2⁶²⁸¹⁴² is an apocalyptic number.

628142 is a deficient number, since it is larger than the sum of its proper divisors (321874).

628142 is a wasteful number, since it uses less digits than its factorization.

628142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602.

The product of its digits is 768, while the sum is 23.

The square root of 628142 is about 792.5540990999. The cubic root of 628142 is about 85.6418310991.

Adding to 628142 its reverse (241826), we get a palindrome (869968).

The spelling of 628142 in words is "six hundred twenty-eight thousand, one hundred forty-two".