42233391 has 12 divisors (see below), whose sum is σ = 62653032. Its totient is φ = 27394416.

The previous prime is 42233363. The next prime is 42233413. The reversal of 42233391 is 19333224.

It is a happy number.

42233391 is a `hidden beast` number, since 42 + 233 + 391 = 666.

42233391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42233391 - 2⁶ = 42233327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42233351) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 63081 + ... + 63746.

It is an arithmetic number, because the mean of its divisors is an integer number (5221086).

Almost surely, 2^42233391 is an apocalyptic number.

42233391 is a deficient number, since it is larger than the sum of its proper divisors (20419641).

42233391 is a wasteful number, since it uses less digits than its factorization.

42233391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126870 (or 126867 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 42233391 is about 6498.7222590291. The cubic root of 42233391 is about 348.2453432406.

It can be divided in two parts, 42233 and 391, that added together give a palindrome (42624).

The spelling of 42233391 in words is "forty-two million, two hundred thirty-three thousand, three hundred ninety-one".