1244444404 has 72 divisors (see below), whose sum is σ = 2735591040. Its totient is φ = 484560384.

The previous prime is 1244444393. The next prime is 1244444407. The reversal of 1244444404 is 4044444421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244444407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232017 + ... + 237319.

It is an arithmetic number, because the mean of its divisors is an integer number (37994320).

Almost surely, 2^1244444404 is an apocalyptic number.

1244444404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244444404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367795520).

1244444404 is an abundant number, since it is smaller than the sum of its proper divisors (1491146636).

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

1244444404 is a wasteful number, since it uses less digits than its factorization.

1244444404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377 (or 5358 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

The square root of 1244444404 is about 35276.6835742818. The cubic root of 1244444404 is about 1075.6190856972.

Adding to 1244444404 its reverse (4044444421), we get a palindrome (5288888825).

The spelling of 1244444404 in words is "one billion, two hundred forty-four million, four hundred forty-four thousand, four hundred four".