662020 has 24 divisors (see below), whose sum is σ = 1411200. Its totient is φ = 260832.

The previous prime is 662003. The next prime is 662021. The reversal of 662020 is 20266.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 661985 and 662003.

It is not an unprimeable number, because it can be changed into a prime (662021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (58800).

2⁶⁶²⁰²⁰ is an apocalyptic number.

It is an amenable number.

662020 is an abundant number, since it is smaller than the sum of its proper divisors (749180).

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

662020 is a wasteful number, since it uses less digits than its factorization.

662020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 662020 is about 813.6461147206. The cubic root of 662020 is about 87.1546112298.

Adding to 662020 its reverse (20266), we get a palindrome (682286).

It can be divided in two parts, 6 and 62020, that added together give a palindrome (62026).

The spelling of 662020 in words is "six hundred sixty-two thousand, twenty".