42430133 has 8 divisors (see below), whose sum is σ = 42918552. Its totient is φ = 41944576.

The previous prime is 42430117. The next prime is 42430139. The reversal of 42430133 is 33103424.

It can be written as a sum of positive squares in 4 ways, for example, as 7300804 + 35129329 = 2702^2 + 5927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42430133 - 2⁴ = 42430117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42430139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42941 + ... + 43917.

It is an arithmetic number, because the mean of its divisors is an integer number (5364819).

Almost surely, 2^42430133 is an apocalyptic number.

It is an amenable number.

42430133 is a deficient number, since it is larger than the sum of its proper divisors (488419).

42430133 is a wasteful number, since it uses less digits than its factorization.

42430133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 42430133 is about 6513.8416468318. The cubic root of 42430133 is about 348.7852664927.

Adding to 42430133 its reverse (33103424), we get a palindrome (75533557).

The spelling of 42430133 in words is "forty-two million, four hundred thirty thousand, one hundred thirty-three".