4133421 has 12 divisors (see below), whose sum is σ = 6069180. Its totient is φ = 2710080.

The previous prime is 4133419. The next prime is 4133449. The reversal of 4133421 is 1243314.

It can be written as a sum of positive squares in 2 ways, for example, as 617796 + 3515625 = 786^2 + 1875^2 .

It is not a de Polignac number, because 4133421 - 2¹ = 4133419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4133394 and 4133403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4133401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3216 + ... + 4313.

It is an arithmetic number, because the mean of its divisors is an integer number (505765).

Almost surely, 2^4133421 is an apocalyptic number.

It is an amenable number.

4133421 is a deficient number, since it is larger than the sum of its proper divisors (1935759).

4133421 is a wasteful number, since it uses less digits than its factorization.

4133421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596 (or 7593 counting only the distinct ones).

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

The square root of 4133421 is about 2033.0816510903. The cubic root of 4133421 is about 160.4857762455.

Adding to 4133421 its reverse (1243314), we get a palindrome (5376735).

It can be divided in two parts, 4133 and 421, that added together give a palindrome (4554).

The spelling of 4133421 in words is "four million, one hundred thirty-three thousand, four hundred twenty-one".