424442404 has 9 divisors (see below), whose sum is σ = 742846321. Its totient is φ = 212200600.

The previous prime is 424442399. The next prime is 424442407. The reversal of 424442404 is 404244424.

The square root of 424442404 is 20602.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 408120804 + 16321600 = 20202^2 + 4040^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424442407) 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 2 ways as a sum of consecutive naturals, for example, 36054 + ... + 46354.

Almost surely, 2^424442404 is an apocalyptic number.

424442404 is the 20602-nd square number.

It is an amenable number.

424442404 is a deficient number, since it is larger than the sum of its proper divisors (318403917).

424442404 is an frugal number, since it uses more digits than its factorization.

424442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20606 (or 10303 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The cubic root of 424442404 is about 751.5183486747.

Multiplying 424442404 by its product of nonzero digits (16384), we get a square (6954064347136 = 2637056²).

Adding to 424442404 its reverse (404244424), we get a palindrome (828686828).

The spelling of 424442404 in words is "four hundred twenty-four million, four hundred forty-two thousand, four hundred four".