2091012 has 96 divisors (see below), whose sum is σ = 6365184. Its totient is φ = 518400.

The previous prime is 2090989. The next prime is 2091053. The reversal of 2091012 is 2101902.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2090982 and 2091000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28608 + ... + 28680.

It is an arithmetic number, because the mean of its divisors is an integer number (66304).

2^2091012 is an apocalyptic number.

2091012 is a gapful number since it is divisible by the number (22) 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 2091012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3182592).

2091012 is an abundant number, since it is smaller than the sum of its proper divisors (4274172).

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

2091012 is a wasteful number, since it uses less digits than its factorization.

2091012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2091012 is about 1446.0331946397. The cubic root of 2091012 is about 127.8749592701.

Adding to 2091012 its reverse (2101902), we get a palindrome (4192914).

It can be divided in two parts, 209 and 1012, that added together give a palindrome (1221).

The spelling of 2091012 in words is "two million, ninety-one thousand, twelve".