42331020 has 96 divisors (see below), whose sum is σ = 128314368. Its totient is φ = 10386432.

The previous prime is 42331007. The next prime is 42331033. The reversal of 42331020 is 2013324.

42331020 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 (42331007) and next prime (42331033).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 47499 + ... + 48381.

It is an arithmetic number, because the mean of its divisors is an integer number (1336608).

Almost surely, 2^42331020 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 42331020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64157184).

42331020 is an abundant number, since it is smaller than the sum of its proper divisors (85983348).

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

42331020 is a wasteful number, since it uses less digits than its factorization.

42331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 42331020 is about 6506.2293227337. The cubic root of 42331020 is about 348.5134776838.

Adding to 42331020 its reverse (2013324), we get a palindrome (44344344).

It can be divided in two parts, 4233 and 1020, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 42331020 in words is "forty-two million, three hundred thirty-one thousand, twenty".