420015555300 has 144 divisors (see below), whose sum is σ = 1326597092352. Its totient is φ = 101754729600.

The previous prime is 420015555209. The next prime is 420015555329. The reversal of 420015555300 is 3555510024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5050657 + ... + 5133143.

It is an arithmetic number, because the mean of its divisors is an integer number (9212479808).

Almost surely, 2^420015555300 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 420015555300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663298546176).

420015555300 is an abundant number, since it is smaller than the sum of its proper divisors (906581537052).

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

420015555300 is a wasteful number, since it uses less digits than its factorization.

420015555300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84058 (or 84051 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 420015555300 in words is "four hundred twenty billion, fifteen million, five hundred fifty-five thousand, three hundred".