42033321 has 24 divisors (see below), whose sum is σ = 67233504. Its totient is φ = 25090560.

The previous prime is 42033307. The next prime is 42033337. The reversal of 42033321 is 12333024.

It is not a de Polignac number, because 42033321 - 2⁵ = 42033289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42033294 and 42033303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42033361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3465 + ... + 9801.

It is an arithmetic number, because the mean of its divisors is an integer number (2801396).

Almost surely, 2^42033321 is an apocalyptic number.

It is an amenable number.

42033321 is a deficient number, since it is larger than the sum of its proper divisors (25200183).

42033321 is a wasteful number, since it uses less digits than its factorization.

42033321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421 (or 6418 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 42033321 is about 6483.3109596872. The cubic root of 42033321 is about 347.6945645420.

Adding to 42033321 its reverse (12333024), we get a palindrome (54366345).

The spelling of 42033321 in words is "forty-two million, thirty-three thousand, three hundred twenty-one".