420445221210504 has 192 divisors, whose sum is σ = 1398495833654400. Its totient is φ = 111373423552512.

The previous prime is 420445221210503. The next prime is 420445221210541. The reversal of 420445221210504 is 405012122544024.

420445221210504 is a `hidden beast` number, since 4 + 2 + 0 + 4 + 4 + 5 + 22 + 121 + 0 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (420445221210503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 365631699 + ... + 366779810.

It is an arithmetic number, because the mean of its divisors is an integer number (7283832466950).

Almost surely, 2^{420445221210504} is an apocalyptic number.

It is an amenable number.

420445221210504 is an abundant number, since it is smaller than the sum of its proper divisors (978050612443896).

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

420445221210504 is a wasteful number, since it uses less digits than its factorization.

420445221210504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732411612 (or 732411605 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 420445221210504 its reverse (405012122544024), we get a palindrome (825457343754528).

The spelling of 420445221210504 in words is "four hundred twenty trillion, four hundred forty-five billion, two hundred twenty-one million, two hundred ten thousand, five hundred four".