420884121 has 8 divisors (see below), whose sum is σ = 641347264. Its totient is φ = 240505200.

The previous prime is 420884083. The next prime is 420884137. The reversal of 420884121 is 121488024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420884121 - 2⁹ = 420883609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420884141) 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, 10021030 + ... + 10021071.

It is an arithmetic number, because the mean of its divisors is an integer number (80168408).

Almost surely, 2^420884121 is an apocalyptic number.

It is an amenable number.

420884121 is a deficient number, since it is larger than the sum of its proper divisors (220463143).

420884121 is a wasteful number, since it uses less digits than its factorization.

420884121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20042111.

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 420884121 is about 20515.4605358983. The cubic root of 420884121 is about 749.4123521247.

The spelling of 420884121 in words is "four hundred twenty million, eight hundred eighty-four thousand, one hundred twenty-one".