2030421 has 4 divisors (see below), whose sum is σ = 2707232. Its totient is φ = 1353612.

The previous prime is 2030419. The next prime is 2030437. The reversal of 2030421 is 1240302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2030421 - 2¹ = 2030419 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2030397 and 2030406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338401 + ... + 338406.

It is an arithmetic number, because the mean of its divisors is an integer number (676808).

2^2030421 is an apocalyptic number.

It is an amenable number.

2030421 is a deficient number, since it is larger than the sum of its proper divisors (676811).

2030421 is an equidigital number, since it uses as much as digits as its factorization.

2030421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676810.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2030421 is about 1424.9284192548. The cubic root of 2030421 is about 126.6276942276.

Adding to 2030421 its reverse (1240302), we get a palindrome (3270723).

The spelling of 2030421 in words is "two million, thirty thousand, four hundred twenty-one".