2406321 has 8 divisors (see below), whose sum is σ = 3564960. Its totient is φ = 1604196.

The previous prime is 2406307. The next prime is 2406343. The reversal of 2406321 is 1236042.

It is a happy number.

It is not a de Polignac number, because 2406321 - 2⁵ = 2406289 is a prime.

2406321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2406294 and 2406303.

It is not an unprimeable number, because it can be changed into a prime (2406121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44535 + ... + 44588.

It is an arithmetic number, because the mean of its divisors is an integer number (445620).

2^2406321 is an apocalyptic number.

It is an amenable number.

2406321 is a deficient number, since it is larger than the sum of its proper divisors (1158639).

2406321 is an equidigital number, since it uses as much as digits as its factorization.

2406321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89132 (or 89126 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2406321 is about 1551.2320909522. The cubic root of 2406321 is about 134.0040282445.

It can be divided in two parts, 240 and 6321, that added together give a 8-th power (6561 = 3⁸).

The spelling of 2406321 in words is "two million, four hundred six thousand, three hundred twenty-one".