662404266 has 48 divisors (see below), whose sum is σ = 1478046024. Its totient is φ = 214244352.

The previous prime is 662404261. The next prime is 662404271.

662404266 is a `hidden beast` number, since 6 + 624 + 0 + 4 + 26 + 6 = 666.

662404266 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (662404261) and next prime (662404271).

It can be written as a sum of positive squares in 4 ways, for example, as 560979225 + 101425041 = 23685^2 + 10071^2 .

It is a super-2 number, since 2×662404266² = 877558823229997512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 662404266.

It is not an unprimeable number, because it can be changed into a prime (662404261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287230 + ... + 289526.

Almost surely, 2^662404266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662404266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (739023012).

662404266 is an abundant number, since it is smaller than the sum of its proper divisors (815641758).

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

662404266 is a wasteful number, since it uses less digits than its factorization.

662404266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 662404266 is about 25737.2155836641. The cubic root of 662404266 is about 871.7147077892.

The spelling of 662404266 in words is "six hundred sixty-two million, four hundred four thousand, two hundred sixty-six".