420015144210 has 128 divisors (see below), whose sum is σ = 1055557536768. Its totient is φ = 106849536000.

The previous prime is 420015144181. The next prime is 420015144259. The reversal of 420015144210 is 12441510024.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79832980 + ... + 79838240.

It is an arithmetic number, because the mean of its divisors is an integer number (8246543256).

Almost surely, 2^420015144210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420015144210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527778768384).

420015144210 is an abundant number, since it is smaller than the sum of its proper divisors (635542392558).

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

420015144210 is a wasteful number, since it uses less digits than its factorization.

420015144210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 420015144210 its reverse (12441510024), we get a palindrome (432456654234).

The spelling of 420015144210 in words is "four hundred twenty billion, fifteen million, one hundred forty-four thousand, two hundred ten".