420005555024 has 80 divisors (see below), whose sum is σ = 926799681024. Its totient is φ = 182519779200.

The previous prime is 420005554993. The next prime is 420005555029. The reversal of 420005555024 is 420555500024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420005555029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8407079 + ... + 8456889.

Almost surely, 2^420005555024 is an apocalyptic number.

420005555024 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420005555024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463399840512).

420005555024 is an abundant number, since it is smaller than the sum of its proper divisors (506794126000).

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

420005555024 is a wasteful number, since it uses less digits than its factorization.

420005555024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51936 (or 51930 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The spelling of 420005555024 in words is "four hundred twenty billion, five million, five hundred fifty-five thousand, twenty-four".