42333520 has 40 divisors (see below), whose sum is σ = 103609440. Its totient is φ = 16041600.

The previous prime is 42333509. The next prime is 42333581. The reversal of 42333520 is 2533324.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 42333491 and 42333500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12406 + ... + 15445.

It is an arithmetic number, because the mean of its divisors is an integer number (2590236).

Almost surely, 2^42333520 is an apocalyptic number.

42333520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42333520 is an abundant number, since it is smaller than the sum of its proper divisors (61275920).

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

42333520 is a wasteful number, since it uses less digits than its factorization.

42333520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27883 (or 27877 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 42333520 is about 6506.4214434664. The cubic root of 42333520 is about 348.5203384252.

Adding to 42333520 its reverse (2533324), we get a palindrome (44866844).

The spelling of 42333520 in words is "forty-two million, three hundred thirty-three thousand, five hundred twenty".