42311020 has 24 divisors (see below), whose sum is σ = 88981200. Its totient is φ = 16900032.

The previous prime is 42310999. The next prime is 42311033. The reversal of 42311020 is 2011324.

42311020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 20391 + ... + 22369.

It is an arithmetic number, because the mean of its divisors is an integer number (3707550).

Almost surely, 2^42311020 is an apocalyptic number.

It is an amenable number.

42311020 is an abundant number, since it is smaller than the sum of its proper divisors (46670180).

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

42311020 is a wasteful number, since it uses less digits than its factorization.

42311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057 (or 3055 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 42311020 is about 6504.6921525926. The cubic root of 42311020 is about 348.4585820259.

Adding to 42311020 its reverse (2011324), we get a palindrome (44322344).

The spelling of 42311020 in words is "forty-two million, three hundred eleven thousand, twenty".