4524421 has 4 divisors (see below), whose sum is σ = 4935744. Its totient is φ = 4113100.

The previous prime is 4524367. The next prime is 4524427. The reversal of 4524421 is 1244254.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 4524421 - 2¹³ = 4516229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4524392 and 4524401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4524427) 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, 205645 + ... + 205666.

It is an arithmetic number, because the mean of its divisors is an integer number (1233936).

Almost surely, 2^4524421 is an apocalyptic number.

It is an amenable number.

4524421 is a deficient number, since it is larger than the sum of its proper divisors (411323).

4524421 is a wasteful number, since it uses less digits than its factorization.

4524421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411322.

The product of its digits is 1280, while the sum is 22.

The square root of 4524421 is about 2127.0686401713. The cubic root of 4524421 is about 165.3944770201.

Adding to 4524421 its reverse (1244254), we get a palindrome (5768675).

It can be divided in two parts, 4 and 524421, that added together give a palindrome (524425).

The spelling of 4524421 in words is "four million, five hundred twenty-four thousand, four hundred twenty-one".