1380216 has 32 divisors (see below), whose sum is σ = 3484800. Its totient is φ = 455520.

The previous prime is 1380199. The next prime is 1380221. The reversal of 1380216 is 6120831.

It is a junction number, because it is equal to n+sod(n) for n = 1380192 and 1380201.

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 7 ways as a sum of consecutive naturals, for example, 2925 + ... + 3363.

It is an arithmetic number, because the mean of its divisors is an integer number (108900).

2^1380216 is an apocalyptic number.

It is an amenable number.

1380216 is an abundant number, since it is smaller than the sum of its proper divisors (2104584).

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

1380216 is a wasteful number, since it uses less digits than its factorization.

1380216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1380216 is about 1174.8259445552. The cubic root of 1380216 is about 111.3394365601.

It can be divided in two parts, 1380 and 216, that added together give a triangular number (1596 = T₅₆).

The spelling of 1380216 in words is "one million, three hundred eighty thousand, two hundred sixteen".