2050020 has 72 divisors (see below), whose sum is σ = 7111104. Its totient is φ = 468288.

The previous prime is 2050007. The next prime is 2050021. The reversal of 2050020 is 200502.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 2049984 and 2050011.

It is not an unprimeable number, because it can be changed into a prime (2050021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 447 + ... + 2073.

2^2050020 is an apocalyptic number.

2050020 is a gapful number since it is divisible by the number (20) 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 2050020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3555552).

2050020 is an abundant number, since it is smaller than the sum of its proper divisors (5061084).

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

2050020 is a wasteful number, since it uses less digits than its factorization.

2050020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

The square root of 2050020 is about 1431.7890906136. The cubic root of 2050020 is about 127.0338223927.

Adding to 2050020 its reverse (200502), we get a palindrome (2250522).

The spelling of 2050020 in words is "two million, fifty thousand, twenty".