404343111 has 16 divisors (see below), whose sum is σ = 542650880. Its totient is φ = 267805440.

The previous prime is 404343101. The next prime is 404343127. The reversal of 404343111 is 111343404.

It is not a de Polignac number, because 404343111 - 2¹⁸ = 404080967 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 (404343101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546780 + ... + 547518.

It is an arithmetic number, because the mean of its divisors is an integer number (33915680).

Almost surely, 2^404343111 is an apocalyptic number.

404343111 is a deficient number, since it is larger than the sum of its proper divisors (138307769).

404343111 is a wasteful number, since it uses less digits than its factorization.

404343111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 404343111 is about 20108.2846359405. The cubic root of 404343111 is about 739.4633990299.

Adding to 404343111 its reverse (111343404), we get a palindrome (515686515).

The spelling of 404343111 in words is "four hundred four million, three hundred forty-three thousand, one hundred eleven".