2041820 has 24 divisors (see below), whose sum is σ = 4678128. Its totient is φ = 742400.

The previous prime is 2041817. The next prime is 2041849. The reversal of 2041820 is 281402.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4421 + ... + 4860.

It is an arithmetic number, because the mean of its divisors is an integer number (194922).

2^2041820 is an apocalyptic number.

2041820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2041820 is an abundant number, since it is smaller than the sum of its proper divisors (2636308).

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

2041820 is a wasteful number, since it uses less digits than its factorization.

2041820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9301 (or 9299 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2041820 is about 1428.9226711058. The cubic root of 2041820 is about 126.8642192786.

The spelling of 2041820 in words is "two million, forty-one thousand, eight hundred twenty".