2418321 has 4 divisors (see below), whose sum is σ = 3224432. Its totient is φ = 1612212.

The previous prime is 2418319. The next prime is 2418329. The reversal of 2418321 is 1238142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2418321 - 2¹ = 2418319 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2418329) 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, 403051 + ... + 403056.

It is an arithmetic number, because the mean of its divisors is an integer number (806108).

2^2418321 is an apocalyptic number.

It is an amenable number.

2418321 is a deficient number, since it is larger than the sum of its proper divisors (806111).

2418321 is an equidigital number, since it uses as much as digits as its factorization.

2418321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806110.

The product of its digits is 384, while the sum is 21.

The square root of 2418321 is about 1555.0951739363. The cubic root of 2418321 is about 134.2264123570.

The spelling of 2418321 in words is "two million, four hundred eighteen thousand, three hundred twenty-one".