1011816 has 96 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 291456.

The previous prime is 1011799. The next prime is 1011817. The reversal of 1011816 is 6181101.

1011816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1011817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21505 + ... + 21551.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2^1011816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572480).

1011816 is an abundant number, since it is smaller than the sum of its proper divisors (2133144).

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

1011816 is a wasteful number, since it uses less digits than its factorization.

1011816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 1011816 is about 1005.8906501206. The cubic root of 1011816 is about 100.3923254611.

Adding to 1011816 its reverse (6181101), we get a palindrome (7192917).

The spelling of 1011816 in words is "one million, eleven thousand, eight hundred sixteen".