42534442020 has 96 divisors (see below), whose sum is σ = 137089612800. Its totient is φ = 9652201344.

The previous prime is 42534442009. The next prime is 42534442039. The reversal of 42534442020 is 2024443524.

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 (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305910 + ... + 422669.

It is an arithmetic number, because the mean of its divisors is an integer number (1428016800).

Almost surely, 2^42534442020 is an apocalyptic number.

It is an amenable number.

42534442020 is an abundant number, since it is smaller than the sum of its proper divisors (94555170780).

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

42534442020 is a wasteful number, since it uses less digits than its factorization.

42534442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728737 (or 728735 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 42534442020 its reverse (2024443524), we get a palindrome (44558885544).

The spelling of 42534442020 in words is "forty-two billion, five hundred thirty-four million, four hundred forty-two thousand, twenty".