404223011 has 4 divisors (see below), whose sum is σ = 404274024. Its totient is φ = 404172000.

The previous prime is 404223007. The next prime is 404223019. The reversal of 404223011 is 110322404.

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 404223011 - 2² = 404223007 is a prime.

It is a super-2 number, since 2×404223011² = 326792485243812242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404223019) 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, 10790 + ... + 30411.

It is an arithmetic number, because the mean of its divisors is an integer number (101068506).

Almost surely, 2^404223011 is an apocalyptic number.

404223011 is a deficient number, since it is larger than the sum of its proper divisors (51013).

404223011 is an equidigital number, since it uses as much as digits as its factorization.

404223011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51012.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 404223011 is about 20105.2980828437. The cubic root of 404223011 is about 739.3901787490.

Adding to 404223011 its reverse (110322404), we get a palindrome (514545415).

The spelling of 404223011 in words is "four hundred four million, two hundred twenty-three thousand, eleven".