420024023140 has 12 divisors (see below), whose sum is σ = 882050448636. Its totient is φ = 168009609248.

The previous prime is 420024023131. The next prime is 420024023213. The reversal of 420024023140 is 41320420024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75943234084 + 344080789056 = 275578^2 + 586584^2 .

It is a super-2 number, since 2×420024023140² (a number of 24 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 10500600559 + ... + 10500600598.

It is an arithmetic number, because the mean of its divisors is an integer number (73504204053).

Almost surely, 2^420024023140 is an apocalyptic number.

It is an amenable number.

420024023140 is an abundant number, since it is smaller than the sum of its proper divisors (462026425496).

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

420024023140 is a wasteful number, since it uses less digits than its factorization.

420024023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21001201166 (or 21001201164 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 420024023140 its reverse (41320420024), we get a palindrome (461344443164).

The spelling of 420024023140 in words is "four hundred twenty billion, twenty-four million, twenty-three thousand, one hundred forty".