4321404 has 24 divisors (see below), whose sum is σ = 11203920. Its totient is φ = 1440432.

The previous prime is 4321397. The next prime is 4321411. The reversal of 4321404 is 4041234.

It is an interprime number because it is at equal distance from previous prime (4321397) and next prime (4321411).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19899 + ... + 20114.

It is an arithmetic number, because the mean of its divisors is an integer number (466830).

Almost surely, 2^4321404 is an apocalyptic number.

It is an amenable number.

4321404 is an abundant number, since it is smaller than the sum of its proper divisors (6882516).

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

4321404 is a wasteful number, since it uses less digits than its factorization.

4321404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40026 (or 40018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4321404 is about 2078.7986915524. The cubic root of 4321404 is about 162.8826987991.

Adding to 4321404 its reverse (4041234), we get a palindrome (8362638).

The spelling of 4321404 in words is "four million, three hundred twenty-one thousand, four hundred four".