4095421 has 4 divisors (see below), whose sum is σ = 4467744. Its totient is φ = 3723100.

The previous prime is 4095401. The next prime is 4095451. The reversal of 4095421 is 1245904.

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 4095421 - 2¹³ = 4087229 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 (4095401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186145 + ... + 186166.

It is an arithmetic number, because the mean of its divisors is an integer number (1116936).

Almost surely, 2^4095421 is an apocalyptic number.

It is an amenable number.

4095421 is a deficient number, since it is larger than the sum of its proper divisors (372323).

4095421 is a wasteful number, since it uses less digits than its factorization.

4095421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372322.

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

The square root of 4095421 is about 2023.7146537988. The cubic root of 4095421 is about 159.9924605822.

The spelling of 4095421 in words is "four million, ninety-five thousand, four hundred twenty-one".