662128 has 20 divisors (see below), whose sum is σ = 1328040. Its totient is φ = 319424.

The previous prime is 662111. The next prime is 662141. The reversal of 662128 is 821266.

It is a congruent number.

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, 250 + ... + 1177.

It is an arithmetic number, because the mean of its divisors is an integer number (66402).

2⁶⁶²¹²⁸ is an apocalyptic number.

It is an amenable number.

662128 is an abundant number, since it is smaller than the sum of its proper divisors (665912).

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

662128 is a wasteful number, since it uses less digits than its factorization.

662128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1458 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 662128 is about 813.7124799338. The cubic root of 662128 is about 87.1593503546.

The spelling of 662128 in words is "six hundred sixty-two thousand, one hundred twenty-eight".