404322444 has 36 divisors (see below), whose sum is σ = 1023142120. Its totient is φ = 134628480.

The previous prime is 404322439. The next prime is 404322449. The reversal of 404322444 is 444223404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (404322439) and next prime (404322449).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (404322449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30759 + ... + 41889.

Almost surely, 2^404322444 is an apocalyptic number.

It is an amenable number.

404322444 is an abundant number, since it is smaller than the sum of its proper divisors (618819676).

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

404322444 is a wasteful number, since it uses less digits than its factorization.

404322444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12150 (or 12145 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 404322444 is about 20107.7707367077. The cubic root of 404322444 is about 739.4508001999.

Adding to 404322444 its reverse (444223404), we get a palindrome (848545848).

The spelling of 404322444 in words is "four hundred four million, three hundred twenty-two thousand, four hundred forty-four".