42063820 has 24 divisors (see below), whose sum is σ = 90723024. Its totient is φ = 16370496.

The previous prime is 42063817. The next prime is 42063823. The reversal of 42063820 is 2836024.

It is a happy number.

42063820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42063817) and next prime (42063823).

It is not an unprimeable number, because it can be changed into a prime (42063823) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27682 + ... + 29161.

It is an arithmetic number, because the mean of its divisors is an integer number (3780126).

Almost surely, 2^42063820 is an apocalyptic number.

It is an amenable number.

42063820 is an abundant number, since it is smaller than the sum of its proper divisors (48659204).

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

42063820 is a wasteful number, since it uses less digits than its factorization.

42063820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56889 (or 56887 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42063820 is about 6485.6626492595. The cubic root of 42063820 is about 347.7786388946.

Adding to 42063820 its reverse (2836024), we get a palindrome (44899844).

The spelling of 42063820 in words is "forty-two million, sixty-three thousand, eight hundred twenty".