420451241 has 4 divisors (see below), whose sum is σ = 480515712. Its totient is φ = 360386772.

The previous prime is 420451189. The next prime is 420451243. The reversal of 420451241 is 142154024.

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 a cyclic number.

It is not a de Polignac number, because 420451241 - 2⁶ = 420451177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420451243) 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, 30032225 + ... + 30032238.

It is an arithmetic number, because the mean of its divisors is an integer number (120128928).

Almost surely, 2^420451241 is an apocalyptic number.

It is an amenable number.

420451241 is a deficient number, since it is larger than the sum of its proper divisors (60064471).

420451241 is an equidigital number, since it uses as much as digits as its factorization.

420451241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60064470.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 420451241 is about 20504.9077296144. The cubic root of 420451241 is about 749.1553400528.

The spelling of 420451241 in words is "four hundred twenty million, four hundred fifty-one thousand, two hundred forty-one".