1344404440 has 32 divisors (see below), whose sum is σ = 3043482480. Its totient is φ = 534460032.

The previous prime is 1344404431. The next prime is 1344404447. The reversal of 1344404440 is 444044431.

It is a junction number, because it is equal to n+sod(n) for n = 1344404399 and 1344404408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344404447) 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, 96579 + ... + 109618.

Almost surely, 2^1344404440 is an apocalyptic number.

1344404440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344404440 is an abundant number, since it is smaller than the sum of its proper divisors (1699078040).

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

1344404440 is a wasteful number, since it uses less digits than its factorization.

1344404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206371 (or 206367 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 1344404440 is about 36666.1211474571. The cubic root of 1344404440 is about 1103.6803558091.

Adding to 1344404440 its reverse (444044431), we get a palindrome (1788448871).

The spelling of 1344404440 in words is "one billion, three hundred forty-four million, four hundred four thousand, four hundred forty".