404226544 has 80 divisors (see below), whose sum is σ = 863757216. Its totient is φ = 182476800.

The previous prime is 404226521. The next prime is 404226553. The reversal of 404226544 is 445622404.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746914 + ... + 747454.

Almost surely, 2^404226544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404226544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431878608).

404226544 is an abundant number, since it is smaller than the sum of its proper divisors (459530672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404226544 is a wasteful number, since it uses less digits than its factorization.

404226544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 404226544 is about 20105.3859450646. The cubic root of 404226544 is about 739.3923328882.

Adding to 404226544 its reverse (445622404), we get a palindrome (849848948).

The spelling of 404226544 in words is "four hundred four million, two hundred twenty-six thousand, five hundred forty-four".