1347240 has 64 divisors (see below), whose sum is σ = 4118400. Its totient is φ = 352512.

The previous prime is 1347223. The next prime is 1347263. The reversal of 1347240 is 427431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12306 + ... + 12414.

It is an arithmetic number, because the mean of its divisors is an integer number (64350).

2^1347240 is an apocalyptic number.

1347240 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 1347240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2059200).

1347240 is an abundant number, since it is smaller than the sum of its proper divisors (2771160).

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

1347240 is a wasteful number, since it uses less digits than its factorization.

1347240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 222 counting only the distinct ones).

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

The square root of 1347240 is about 1160.7066812938. The cubic root of 1347240 is about 110.4455755957.

Adding to 1347240 its sum of digits (21), we get a triangular number (1347261 = T₁₆₄₁).

The spelling of 1347240 in words is "one million, three hundred forty-seven thousand, two hundred forty".