42540333 has 12 divisors (see below), whose sum is σ = 62346144. Its totient is φ = 25781800.

The previous prime is 42540331. The next prime is 42540349. The reversal of 42540333 is 33304524.

It is not a de Polignac number, because 42540333 - 2¹ = 42540331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42540331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58233 + ... + 58958.

It is an arithmetic number, because the mean of its divisors is an integer number (5195512).

Almost surely, 2^42540333 is an apocalyptic number.

It is an amenable number.

42540333 is a deficient number, since it is larger than the sum of its proper divisors (19805811).

42540333 is a wasteful number, since it uses less digits than its factorization.

42540333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117216 (or 117205 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 42540333 is about 6522.2950715220. The cubic root of 42540333 is about 349.0869617424.

Adding to 42540333 its reverse (33304524), we get a palindrome (75844857).

The spelling of 42540333 in words is "forty-two million, five hundred forty thousand, three hundred thirty-three".