662142 has 24 divisors (see below), whose sum is σ = 1436184. Its totient is φ = 203424.

The previous prime is 662141. The next prime is 662143. The reversal of 662142 is 241266.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (662141) and next prime (662143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662141) 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 11 ways as a sum of consecutive naturals, for example, 688 + ... + 1340.

It is an arithmetic number, because the mean of its divisors is an integer number (59841).

2⁶⁶²¹⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718092).

662142 is an abundant number, since it is smaller than the sum of its proper divisors (774042).

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

662142 is a wasteful number, since it uses less digits than its factorization.

662142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 671 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 662142 is about 813.7210824355. The cubic root of 662142 is about 87.1599646479.

The spelling of 662142 in words is "six hundred sixty-two thousand, one hundred forty-two".