1347280 has 40 divisors (see below), whose sum is σ = 3419424. Its totient is φ = 489600.

The previous prime is 1347277. The next prime is 1347287. The reversal of 1347280 is 827431.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347287) 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, 115 + ... + 1645.

2^1347280 is an apocalyptic number.

1347280 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 1347280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709712).

1347280 is an abundant number, since it is smaller than the sum of its proper divisors (2072144).

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

1347280 is a wasteful number, since it uses less digits than its factorization.

1347280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1347280 is about 1160.7239120480. The cubic root of 1347280 is about 110.4466686401.

The spelling of 1347280 in words is "one million, three hundred forty-seven thousand, two hundred eighty".