420301020 has 24 divisors (see below), whose sum is σ = 1176843024. Its totient is φ = 112080256.

The previous prime is 420301009. The next prime is 420301087. The reversal of 420301020 is 20103024.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 420300987 and 420301005.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3502449 + ... + 3502568.

It is an arithmetic number, because the mean of its divisors is an integer number (49035126).

Almost surely, 2^420301020 is an apocalyptic number.

It is an amenable number.

420301020 is an abundant number, since it is smaller than the sum of its proper divisors (756542004).

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

420301020 is a wasteful number, since it uses less digits than its factorization.

420301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7005029 (or 7005027 counting only the distinct ones).

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

The square root of 420301020 is about 20501.2443524777. The cubic root of 420301020 is about 749.0661087232.

Adding to 420301020 its reverse (20103024), we get a palindrome (440404044).

The spelling of 420301020 in words is "four hundred twenty million, three hundred one thousand, twenty".