2040816 has 80 divisors (see below), whose sum is σ = 5812128. Its totient is φ = 614400.

The previous prime is 2040803. The next prime is 2040827. The reversal of 2040816 is 6180402.

It is a junction number, because it is equal to n+sod(n) for n = 2040792 and 2040801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33426 + ... + 33486.

2^2040816 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 2040816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2906064).

2040816 is an abundant number, since it is smaller than the sum of its proper divisors (3771312).

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

2040816 is a wasteful number, since it uses less digits than its factorization.

2040816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2040816 is about 1428.5713142857. The cubic root of 2040816 is about 126.8434220554.

The spelling of 2040816 in words is "two million, forty thousand, eight hundred sixteen".