1344440460 has 96 divisors (see below), whose sum is σ = 4146734592. Its totient is φ = 322744320.

The previous prime is 1344440443. The next prime is 1344440477. The reversal of 1344440460 is 640444431.

It is an interprime number because it is at equal distance from previous prime (1344440443) and next prime (1344440477).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58092 + ... + 77868.

It is an arithmetic number, because the mean of its divisors is an integer number (43195152).

Almost surely, 2^1344440460 is an apocalyptic number.

1344440460 is a gapful number since it is divisible by the number (10) 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 1344440460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073367296).

1344440460 is an abundant number, since it is smaller than the sum of its proper divisors (2802294132).

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

1344440460 is a wasteful number, since it uses less digits than its factorization.

1344440460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19903 (or 19901 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 1344440460 is about 36666.6123332931. The cubic root of 1344440460 is about 1103.6902125185.

Adding to 1344440460 its reverse (640444431), we get a palindrome (1984884891).

The spelling of 1344440460 in words is "one billion, three hundred forty-four million, four hundred forty thousand, four hundred sixty".