436668 has 12 divisors (see below), whose sum is σ = 1018920. Its totient is φ = 145552.

The previous prime is 436651. The next prime is 436673. The reversal of 436668 is 866634.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

436668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 18183 + ... + 18206.

It is an arithmetic number, because the mean of its divisors is an integer number (84910).

2⁴³⁶⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

436668 is an abundant number, since it is smaller than the sum of its proper divisors (582252).

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

436668 is a wasteful number, since it uses less digits than its factorization.

436668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36396 (or 36394 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 436668 is about 660.8085955857. The cubic root of 436668 is about 75.8665710542.

The spelling of 436668 in words is "four hundred thirty-six thousand, six hundred sixty-eight".