324920 has 16 divisors (see below), whose sum is σ = 731160. Its totient is φ = 129952.

The previous prime is 324901. The next prime is 324931. The reversal of 324920 is 29423.

324920 = T₂₈₁ + T₂₈₂ + ... + T₂₈₈.

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

It is a junction number, because it is equal to n+sod(n) for n = 324892 and 324901.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 324920.

It is an unprimeable number.

324920 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 3 ways as a sum of consecutive naturals, for example, 4022 + ... + 4101.

2³²⁴⁹²⁰ is an apocalyptic number.

It is an amenable number.

324920 is an abundant number, since it is smaller than the sum of its proper divisors (406240).

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

324920 is a wasteful number, since it uses less digits than its factorization.

324920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8134 (or 8130 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 324920 is about 570.0175435897. The cubic root of 324920 is about 68.7478015826.

Subtracting from 324920 its sum of digits (20), we obtain a square (324900 = 570²).

It can be divided in two parts, 3249 and 20, that multiplied together give a triangular number (64980 = T₃₆₀).

The spelling of 324920 in words is "three hundred twenty-four thousand, nine hundred twenty".