404234111 has 4 divisors (see below), whose sum is σ = 404413152. Its totient is φ = 404055072.

The previous prime is 404234093. The next prime is 404234113. The reversal of 404234111 is 111432404.

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

It is a cyclic number.

It is not a de Polignac number, because 404234111 - 2¹⁴ = 404217727 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 (404234113) 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, 86090 + ... + 90663.

It is an arithmetic number, because the mean of its divisors is an integer number (101103288).

Almost surely, 2^404234111 is an apocalyptic number.

404234111 is a deficient number, since it is larger than the sum of its proper divisors (179041).

404234111 is a wasteful number, since it uses less digits than its factorization.

404234111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179040.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 404234111 is about 20105.5741275896. The cubic root of 404234111 is about 739.3969465938.

Adding to 404234111 its reverse (111432404), we get a palindrome (515666515).

The spelling of 404234111 in words is "four hundred four million, two hundred thirty-four thousand, one hundred eleven".