1344002440 has 32 divisors (see below), whose sum is σ = 3298916160. Its totient is φ = 488728000.

The previous prime is 1344002437. The next prime is 1344002441. The reversal of 1344002440 is 442004431.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1344002441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1526836 + ... + 1527715.

It is an arithmetic number, because the mean of its divisors is an integer number (103091130).

Almost surely, 2^1344002440 is an apocalyptic number.

1344002440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344002440 is an abundant number, since it is smaller than the sum of its proper divisors (1954913720).

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

1344002440 is a wasteful number, since it uses less digits than its factorization.

1344002440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054573 (or 3054569 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1344002440 is about 36660.6388378599. The cubic root of 1344002440 is about 1103.5703383869.

Adding to 1344002440 its reverse (442004431), we get a palindrome (1786006871).

The spelling of 1344002440 in words is "one billion, three hundred forty-four million, two thousand, four hundred forty".