420002199980 has 96 divisors (see below), whose sum is σ = 966586376448. Its totient is φ = 152031340800.

The previous prime is 420002199907. The next prime is 420002199997. The reversal of 420002199980 is 89991200024.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46195235 + ... + 46204325.

It is an arithmetic number, because the mean of its divisors is an integer number (10068608088).

Almost surely, 2^420002199980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420002199980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483293188224).

420002199980 is an abundant number, since it is smaller than the sum of its proper divisors (546584176468).

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

420002199980 is a wasteful number, since it uses less digits than its factorization.

420002199980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10047 (or 10045 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

Adding to 420002199980 its sum of digits (44), we get a palindrome (420002200024).

The spelling of 420002199980 in words is "four hundred twenty billion, two million, one hundred ninety-nine thousand, nine hundred eighty".