1243444404 has 24 divisors (see below), whose sum is σ = 2902976608. Its totient is φ = 414252000.

The previous prime is 1243444403. The next prime is 1243444409. The reversal of 1243444404 is 4044443421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243444403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5347 + ... + 50154.

Almost surely, 2^1243444404 is an apocalyptic number.

It is an amenable number.

1243444404 is an abundant number, since it is smaller than the sum of its proper divisors (1659532204).

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

1243444404 is a wasteful number, since it uses less digits than its factorization.

1243444404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57375 (or 57373 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 1243444404 is about 35262.5070577802. The cubic root of 1243444404 is about 1075.3308962253.

Adding to 1243444404 its reverse (4044443421), we get a palindrome (5287887825).

The spelling of 1243444404 in words is "one billion, two hundred forty-three million, four hundred forty-four thousand, four hundred four".