420100002 has 24 divisors (see below), whose sum is σ = 1040247936. Its totient is φ = 120028536.

The previous prime is 420099997. The next prime is 420100019. The reversal of 420100002 is 200001024.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 11 ways as a sum of consecutive naturals, for example, 1666938 + ... + 1667189.

It is an arithmetic number, because the mean of its divisors is an integer number (43343664).

Almost surely, 2^420100002 is an apocalyptic number.

420100002 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

420100002 is an abundant number, since it is smaller than the sum of its proper divisors (620147934).

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

420100002 is a wasteful number, since it uses less digits than its factorization.

420100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334142 (or 3334139 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 420100002 is about 20496.3411856848. The cubic root of 420100002 is about 748.9466706890.

Adding to 420100002 its reverse (200001024), we get a palindrome (620101026).

The spelling of 420100002 in words is "four hundred twenty million, one hundred thousand, two".