1344405040 has 80 divisors (see below), whose sum is σ = 3589413120. Its totient is φ = 463138560.

The previous prime is 1344405037. The next prime is 1344405071. The reversal of 1344405040 is 405044431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1344404996 and 1344405014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23484 + ... + 56923.

It is an arithmetic number, because the mean of its divisors is an integer number (44867664).

Almost surely, 2^1344405040 is an apocalyptic number.

1344405040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344405040 is an abundant number, since it is smaller than the sum of its proper divisors (2245008080).

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

1344405040 is a wasteful number, since it uses less digits than its factorization.

1344405040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80450 (or 80444 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1344405040 is about 36666.1293293961. The cubic root of 1344405040 is about 1103.6805199979.

Adding to 1344405040 its reverse (405044431), we get a palindrome (1749449471).

The spelling of 1344405040 in words is "one billion, three hundred forty-four million, four hundred five thousand, forty".