2016090 has 80 divisors (see below), whose sum is σ = 5749920. Its totient is φ = 505440.

The previous prime is 2016059. The next prime is 2016101. The reversal of 2016090 is 906102.

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

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15325 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (71874).

2^2016090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2016090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2874960).

2016090 is an abundant number, since it is smaller than the sum of its proper divisors (3733830).

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

2016090 is a wasteful number, since it uses less digits than its factorization.

2016090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2016090 is about 1419.8908408747. The cubic root of 2016090 is about 126.3290717941.

It can be divided in two parts, 20 and 16090, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 2016090 in words is "two million, sixteen thousand, ninety".