404144434 has 8 divisors (see below), whose sum is σ = 641876508. Its totient is φ = 190185600.

The previous prime is 404144371. The next prime is 404144441. The reversal of 404144434 is 434441404.

It can be written as a sum of positive squares in 2 ways, for example, as 403889409 + 255025 = 20097^2 + 505^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×404144434³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5943267 + ... + 5943334.

Almost surely, 2^404144434 is an apocalyptic number.

404144434 is a deficient number, since it is larger than the sum of its proper divisors (237732074).

404144434 is a wasteful number, since it uses less digits than its factorization.

404144434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11886620.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 404144434 is about 20103.3438512104. The cubic root of 404144434 is about 739.3422655711.

Adding to 404144434 its reverse (434441404), we get a palindrome (838585838).

The spelling of 404144434 in words is "four hundred four million, one hundred forty-four thousand, four hundred thirty-four".