1057216 has 14 divisors (see below), whose sum is σ = 2098040. Its totient is φ = 528576.

The previous prime is 1057183. The next prime is 1057219. The reversal of 1057216 is 6127501.

It is a super-2 number, since 2×1057216² = 2235411341312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8196 + ... + 8323.

It is an arithmetic number, because the mean of its divisors is an integer number (149860).

2^1057216 is an apocalyptic number.

1057216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1057216 is a deficient number, since it is larger than the sum of its proper divisors (1040824).

1057216 is an equidigital number, since it uses as much as digits as its factorization.

1057216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16531 (or 16521 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1057216 is about 1028.2100952626. The cubic root of 1057216 is about 101.8719397628.

The spelling of 1057216 in words is "one million, fifty-seven thousand, two hundred sixteen".