42322012020 has 72 divisors (see below), whose sum is σ = 128394269640. Its totient is φ = 11284331520.

The previous prime is 42322012013. The next prime is 42322012043. The reversal of 42322012020 is 2021022324.

42322012020 is a `hidden beast` number, since 423 + 2 + 201 + 20 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 610485264 + 41711526756 = 24708^2 + 204234^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42322011984 and 42322012002.

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, 2036080 + ... + 2056760.

It is an arithmetic number, because the mean of its divisors is an integer number (1783253745).

Almost surely, 2^42322012020 is an apocalyptic number.

It is an amenable number.

42322012020 is an abundant number, since it is smaller than the sum of its proper divisors (86072257620).

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

42322012020 is a wasteful number, since it uses less digits than its factorization.

42322012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32065 (or 32060 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 42322012020 its reverse (2021022324), we get a palindrome (44343034344).

The spelling of 42322012020 in words is "forty-two billion, three hundred twenty-two million, twelve thousand, twenty".