1344720 has 80 divisors (see below), whose sum is σ = 4499712. Its totient is φ = 330240.

The previous prime is 1344709. The next prime is 1344727. The reversal of 1344720 is 274431.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2905 + ... + 3335.

2^1344720 is an apocalyptic number.

1344720 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 1344720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2249856).

1344720 is an abundant number, since it is smaller than the sum of its proper divisors (3154992).

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

1344720 is a wasteful number, since it uses less digits than its factorization.

1344720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 1344720 is about 1159.6206276192. The cubic root of 1344720 is about 110.3766701385.

The spelling of 1344720 in words is "one million, three hundred forty-four thousand, seven hundred twenty".