1043216 has 20 divisors (see below), whose sum is σ = 2042652. Its totient is φ = 516096.

The previous prime is 1043213. The next prime is 1043221. The reversal of 1043216 is 6123401.

It can be written as a sum of positive squares in 2 ways, for example, as 547600 + 495616 = 740^2 + 704^2 .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1043194 and 1043203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1520 + ... + 2096.

2^1043216 is an apocalyptic number.

1043216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1043216 is a deficient number, since it is larger than the sum of its proper divisors (999436).

1043216 is a wasteful number, since it uses less digits than its factorization.

1043216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1043216 is about 1021.3794593588. The cubic root of 1043216 is about 101.4202662738.

Adding to 1043216 its reverse (6123401), we get a palindrome (7166617).

The spelling of 1043216 in words is "one million, forty-three thousand, two hundred sixteen".