1026816 has 72 divisors (see below), whose sum is σ = 3139584. Its totient is φ = 291840.

The previous prime is 1026811. The next prime is 1026829. The reversal of 1026816 is 6186201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1026811) 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, 5281 + ... + 5471.

2^1026816 is an apocalyptic number.

1026816 is a gapful number since it is divisible by the number (16) 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 1026816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569792).

1026816 is an abundant number, since it is smaller than the sum of its proper divisors (2112768).

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

1026816 is an equidigital number, since it uses as much as digits as its factorization.

1026816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1026816 is about 1013.3192981484. The cubic root of 1026816 is about 100.8859936364.

The spelling of 1026816 in words is "one million, twenty-six thousand, eight hundred sixteen".