445764 has 36 divisors (see below), whose sum is σ = 1146992. Its totient is φ = 134640.

The previous prime is 445747. The next prime is 445769. The reversal of 445764 is 467544.

It is a super-3 number, since 3×445764³ = 265727333940311232, which contains 333 as substring.

Its product of digits (13440) is a multiple of the sum of its prime factors (336).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (445769) by changing a digit.

445764 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1299 + ... + 1605.

2⁴⁴⁵⁷⁶⁴ is an apocalyptic number.

445764 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573496).

445764 is an abundant number, since it is smaller than the sum of its proper divisors (701228).

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

445764 is a wasteful number, since it uses less digits than its factorization.

445764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 323 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 445764 is about 667.6555998417. The cubic root of 445764 is about 76.3897339166.

The spelling of 445764 in words is "four hundred forty-five thousand, seven hundred sixty-four".