42133442 has 8 divisors (see below), whose sum is σ = 68061756. Its totient is φ = 19446192.

The previous prime is 42133439. The next prime is 42133451. The reversal of 42133442 is 24433124.

It can be written as a sum of positive squares in 2 ways, for example, as 42133081 + 361 = 6491^2 + 19^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810233 + ... + 810284.

Almost surely, 2^42133442 is an apocalyptic number.

42133442 is a deficient number, since it is larger than the sum of its proper divisors (25928314).

42133442 is a wasteful number, since it uses less digits than its factorization.

42133442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620532.

The product of its digits is 2304, while the sum is 23.

The square root of 42133442 is about 6491.0278076742. The cubic root of 42133442 is about 347.9704085905.

Adding to 42133442 its reverse (24433124), we get a palindrome (66566566).

The spelling of 42133442 in words is "forty-two million, one hundred thirty-three thousand, four hundred forty-two".