4034321 has 4 divisors (see below), whose sum is σ = 4271652. Its totient is φ = 3796992.

The previous prime is 4034311. The next prime is 4034333. The reversal of 4034321 is 1234304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3748096 + 286225 = 1936^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 4034321 - 2¹⁸ = 3772177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 237313 = 4034321 / (4 + 0 + 3 + 4 + 3 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4034321.

It is not an unprimeable number, because it can be changed into a prime (4034311) 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, 118640 + ... + 118673.

It is an arithmetic number, because the mean of its divisors is an integer number (1067913).

Almost surely, 2^4034321 is an apocalyptic number.

It is an amenable number.

4034321 is a deficient number, since it is larger than the sum of its proper divisors (237331).

4034321 is a wasteful number, since it uses less digits than its factorization.

4034321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237330.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4034321 is about 2008.5619233671. The cubic root of 4034321 is about 159.1928227743.

Subtracting from 4034321 its sum of digits (17), we obtain a palindrome (4034304).

Adding to 4034321 its reverse (1234304), we get a palindrome (5268625).

The spelling of 4034321 in words is "four million, thirty-four thousand, three hundred twenty-one".