662288 has 40 divisors (see below), whose sum is σ = 1446336. Its totient is φ = 291200.

The previous prime is 662287. The next prime is 662309. The reversal of 662288 is 882266.

It is a happy number.

It is a d-powerful number, because it can be written as 6⁷ + 6⁷ + 2⁴ + 2¹⁶ + 8⁴ + 8⁵ .

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (662281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9293 + ... + 9363.

2⁶⁶²²⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723168).

662288 is an abundant number, since it is smaller than the sum of its proper divisors (784048).

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

662288 is a wasteful number, since it uses less digits than its factorization.

662288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 137 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 662288 is about 813.8107888201. The cubic root of 662288 is about 87.1663703331.

The spelling of 662288 in words is "six hundred sixty-two thousand, two hundred eighty-eight".