2030455421 has 4 divisors (see below), whose sum is σ = 2030833500. Its totient is φ = 2030077344.

The previous prime is 2030455417. The next prime is 2030455439. The reversal of 2030455421 is 1245540302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1268143321 + 762312100 = 35611^2 + 27610^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030455421 - 2² = 2030455417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030455481) 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, 180866 + ... + 191763.

It is an arithmetic number, because the mean of its divisors is an integer number (507708375).

Almost surely, 2^2030455421 is an apocalyptic number.

It is an amenable number.

2030455421 is a deficient number, since it is larger than the sum of its proper divisors (378079).

2030455421 is an equidigital number, since it uses as much as digits as its factorization.

2030455421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378078.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2030455421 is about 45060.5750185237. The cubic root of 2030455421 is about 1266.2840978154.

Adding to 2030455421 its reverse (1245540302), we get a palindrome (3275995723).

The spelling of 2030455421 in words is "two billion, thirty million, four hundred fifty-five thousand, four hundred twenty-one".