424332402031220 has 72 divisors (see below), whose sum is σ = 922917982221144. Its totient is φ = 163874266888192.

The previous prime is 424332402031147. The next prime is 424332402031243. The reversal of 424332402031220 is 22130204233424.

It can be written as a sum of positive squares in 12 ways, for example, as 234257595586576 + 190074806444644 = 15305476^2 + 13786762^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487900592 + ... + 488769528.

It is an arithmetic number, because the mean of its divisors is an integer number (12818305308627).

Almost surely, 2^{424332402031220} 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 424332402031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461458991110572).

424332402031220 is an abundant number, since it is smaller than the sum of its proper divisors (498585580189924).

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

424332402031220 is a wasteful number, since it uses less digits than its factorization.

424332402031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898037 (or 898006 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 424332402031220 its reverse (22130204233424), we get a palindrome (446462606264644).

The spelling of 424332402031220 in words is "four hundred twenty-four trillion, three hundred thirty-two billion, four hundred two million, thirty-one thousand, two hundred twenty".