327440 has 20 divisors (see below), whose sum is σ = 761484. Its totient is φ = 130944.

The previous prime is 327433. The next prime is 327443. The reversal of 327440 is 44723.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 126736 + 200704 = 356^2 + 448^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (327443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967 + ... + 2126.

327440 is a Friedman number, since it can be written as 20*(4^7-4*3), using all its digits and the basic arithmetic operations.

2³²⁷⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

327440 is an abundant number, since it is smaller than the sum of its proper divisors (434044).

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

327440 is a wasteful number, since it uses less digits than its factorization.

327440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106 (or 4100 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 327440 is about 572.2237324683. The cubic root of 327440 is about 68.9250744491.

It can be divided in two parts, 327 and 440, that added together give a palindrome (767).

The spelling of 327440 in words is "three hundred twenty-seven thousand, four hundred forty", and thus it is an iban number.