2021190 has 32 divisors (see below), whose sum is σ = 4911840. Its totient is φ = 532224.

The previous prime is 2021183. The next prime is 2021191. The reversal of 2021190 is 911202.

It is a happy number.

It is a super-2 number, since 2×2021190² = 8170418032200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021191) 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 15 ways as a sum of consecutive naturals, for example, 2292 + ... + 3048.

It is an arithmetic number, because the mean of its divisors is an integer number (153495).

2^2021190 is an apocalyptic number.

2021190 is an abundant number, since it is smaller than the sum of its proper divisors (2890650).

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

2021190 is a wasteful number, since it uses less digits than its factorization.

2021190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2021190 is about 1421.6856192562. The cubic root of 2021190 is about 126.4355048340.

Adding to 2021190 its reverse (911202), we get a palindrome (2932392).

It can be divided in two parts, 20211 and 90, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 2021190 in words is "two million, twenty-one thousand, one hundred ninety".