2020090 has 16 divisors (see below), whose sum is σ = 3794688. Its totient is φ = 772816.

The previous prime is 2020079. The next prime is 2020091. The reversal of 2020090 is 900202.

It is a self number, because there is not a number n which added to its sum of digits gives 2020090.

It is not an unprimeable number, because it can be changed into a prime (2020091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4162 + ... + 4621.

It is an arithmetic number, because the mean of its divisors is an integer number (237168).

2^2020090 is an apocalyptic number.

2020090 is a deficient number, since it is larger than the sum of its proper divisors (1774598).

2020090 is a wasteful number, since it uses less digits than its factorization.

2020090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8813.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2020090 is about 1421.2987018920. The cubic root of 2020090 is about 126.4125638449.

Adding to 2020090 its reverse (900202), we get a palindrome (2920292).

The spelling of 2020090 in words is "two million, twenty thousand, ninety".