662623220 has 24 divisors (see below), whose sum is σ = 1590296064. Its totient is φ = 227185056.

The previous prime is 662623211. The next prime is 662623237. The reversal of 662623220 is 22326266.

It is a happy number.

662623220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366372 + ... + 2366651.

It is an arithmetic number, because the mean of its divisors is an integer number (66262336).

Almost surely, 2^662623220 is an apocalyptic number.

It is an amenable number.

662623220 is an abundant number, since it is smaller than the sum of its proper divisors (927672844).

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

662623220 is a wasteful number, since it uses less digits than its factorization.

662623220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733039 (or 4733037 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 662623220 is about 25741.4688780574. The cubic root of 662623220 is about 871.8107440045.

Adding to 662623220 its reverse (22326266), we get a palindrome (684949486).

The spelling of 662623220 in words is "six hundred sixty-two million, six hundred twenty-three thousand, two hundred twenty".