420040002 has 32 divisors (see below), whose sum is σ = 877060800. Its totient is φ = 133939008.

The previous prime is 420039967. The next prime is 420040013. The reversal of 420040002 is 200040024.

It is a self number, because there is not a number n which added to its sum of digits gives 420040002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7893 + ... + 30039.

It is an arithmetic number, because the mean of its divisors is an integer number (27408150).

Almost surely, 2^420040002 is an apocalyptic number.

420040002 is an abundant number, since it is smaller than the sum of its proper divisors (457020798).

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

420040002 is a wasteful number, since it uses less digits than its factorization.

420040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22290.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 420040002 is about 20494.8774575502. The cubic root of 420040002 is about 748.9110133538.

Adding to 420040002 its reverse (200040024), we get a palindrome (620080026).

The spelling of 420040002 in words is "four hundred twenty million, forty thousand, two".