1350780 has 48 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 351808.

The previous prime is 1350779. The next prime is 1350799. The reversal of 1350780 is 870531.

It is a self number, because there is not a number n which added to its sum of digits gives 1350780.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2581 + ... + 3059.

It is an arithmetic number, because the mean of its divisors is an integer number (80640).

2^1350780 is an apocalyptic number.

1350780 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 1350780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935360).

1350780 is an abundant number, since it is smaller than the sum of its proper divisors (2519940).

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

1350780 is a wasteful number, since it uses less digits than its factorization.

1350780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1350780 is about 1162.2306139489. The cubic root of 1350780 is about 110.5422263764.

Subtracting from 1350780 its reverse (870531), we obtain a square (480249 = 693²).

The spelling of 1350780 in words is "one million, three hundred fifty thousand, seven hundred eighty".