424191 has 4 divisors (see below), whose sum is σ = 565592. Its totient is φ = 282792.

The previous prime is 424187. The next prime is 424199. The reversal of 424191 is 191424.

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

It is not a de Polignac number, because 424191 - 2² = 424187 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424199) 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, 70696 + ... + 70701.

It is an arithmetic number, because the mean of its divisors is an integer number (141398).

2⁴²⁴¹⁹¹ is an apocalyptic number.

424191 is a deficient number, since it is larger than the sum of its proper divisors (141401).

424191 is a wasteful number, since it uses less digits than its factorization.

424191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141400.

The product of its digits is 288, while the sum is 21.

The square root of 424191 is about 651.2994702900. The cubic root of 424191 is about 75.1369940605.

The spelling of 424191 in words is "four hundred twenty-four thousand, one hundred ninety-one".