1317380 has 24 divisors (see below), whose sum is σ = 2788800. Its totient is φ = 522720.

The previous prime is 1317377. The next prime is 1317397. The reversal of 1317380 is 837131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3815 + ... + 4145.

It is an arithmetic number, because the mean of its divisors is an integer number (116200).

2^1317380 is an apocalyptic number.

1317380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317380 is an abundant number, since it is smaller than the sum of its proper divisors (1471420).

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

1317380 is a wasteful number, since it uses less digits than its factorization.

1317380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1317380 is about 1147.7717543135. The cubic root of 1317380 is about 109.6235062445.

Subtracting from 1317380 its reverse (837131), we obtain a square (480249 = 693²).

The spelling of 1317380 in words is "one million, three hundred seventeen thousand, three hundred eighty".