1056216 has 32 divisors (see below), whose sum is σ = 3018240. Its totient is φ = 301728.

The previous prime is 1056203. The next prime is 1056217. The reversal of 1056216 is 6126501.

It is a happy number.

It is a super-2 number, since 2×1056216² = 2231184477312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1056192 and 1056201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2976 + ... + 3311.

It is an arithmetic number, because the mean of its divisors is an integer number (94320).

2^1056216 is an apocalyptic number.

It is an amenable number.

1056216 is an abundant number, since it is smaller than the sum of its proper divisors (1962024).

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

1056216 is a wasteful number, since it uses less digits than its factorization.

1056216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303 (or 6299 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1056216 is about 1027.7236982769. The cubic root of 1056216 is about 101.8398100699.

The spelling of 1056216 in words is "one million, fifty-six thousand, two hundred sixteen".