4590421 has 4 divisors (see below), whose sum is σ = 5007744. Its totient is φ = 4173100.

The previous prime is 4590403. The next prime is 4590427. The reversal of 4590421 is 1240954.

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 4590421 - 2⁵ = 4590389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4590427) 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, 208645 + ... + 208666.

It is an arithmetic number, because the mean of its divisors is an integer number (1251936).

Almost surely, 2^4590421 is an apocalyptic number.

It is an amenable number.

4590421 is a deficient number, since it is larger than the sum of its proper divisors (417323).

4590421 is a wasteful number, since it uses less digits than its factorization.

4590421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417322.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 4590421 is about 2142.5267792959. The cubic root of 4590421 is about 166.1948285846.

The spelling of 4590421 in words is "four million, five hundred ninety thousand, four hundred twenty-one".