1306560 has 56 divisors (see below), whose sum is σ = 4151376. Its totient is φ = 348160.

The previous prime is 1306541. The next prime is 1306589. The reversal of 1306560 is 656031.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 280 + ... + 1640.

2^1306560 is an apocalyptic number.

1306560 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 1306560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2075688).

1306560 is an abundant number, since it is smaller than the sum of its proper divisors (2844816).

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

1306560 is a wasteful number, since it uses less digits than its factorization.

1306560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1306560 is about 1143.0485553991. The cubic root of 1306560 is about 109.3225582613.

The spelling of 1306560 in words is "one million, three hundred six thousand, five hundred sixty".