421146020004 has 24 divisors (see below), whose sum is σ = 1014373210368. Its totient is φ = 135853554720.

The previous prime is 421146019997. The next prime is 421146020021. The reversal of 421146020004 is 400020641124.

It is a happy 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, 566056107 + ... + 566056850.

It is an arithmetic number, because the mean of its divisors is an integer number (42265550432).

Almost surely, 2^421146020004 is an apocalyptic number.

It is an amenable number.

421146020004 is an abundant number, since it is smaller than the sum of its proper divisors (593227190364).

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

421146020004 is a wasteful number, since it uses less digits than its factorization.

421146020004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132112995 (or 1132112993 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 421146020004 its reverse (400020641124), we get a palindrome (821166661128).

The spelling of 421146020004 in words is "four hundred twenty-one billion, one hundred forty-six million, twenty thousand, four".