42230642 has 8 divisors (see below), whose sum is σ = 63409500. Its totient is φ = 21094144.

The previous prime is 42230603. The next prime is 42230659. The reversal of 42230642 is 24603224.

It can be written as a sum of positive squares in 2 ways, for example, as 33651601 + 8579041 = 5801^2 + 2929^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7967 + ... + 12162.

Almost surely, 2^42230642 is an apocalyptic number.

42230642 is a deficient number, since it is larger than the sum of its proper divisors (21178858).

42230642 is a wasteful number, since it uses less digits than its factorization.

42230642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21180.

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

The square root of 42230642 is about 6498.5107524724. The cubic root of 42230642 is about 348.2377872349.

Adding to 42230642 its reverse (24603224), we get a palindrome (66833866).

The spelling of 42230642 in words is "forty-two million, two hundred thirty thousand, six hundred forty-two".