42243682 has 8 divisors (see below), whose sum is σ = 68239836. Its totient is φ = 19497072.

The previous prime is 42243679. The next prime is 42243683. The reversal of 42243682 is 28634224.

It can be written as a sum of positive squares in 2 ways, for example, as 41100921 + 1142761 = 6411^2 + 1069^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42243683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812353 + ... + 812404.

Almost surely, 2^42243682 is an apocalyptic number.

42243682 is a deficient number, since it is larger than the sum of its proper divisors (25996154).

42243682 is a wasteful number, since it uses less digits than its factorization.

42243682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624772.

The product of its digits is 18432, while the sum is 31.

The square root of 42243682 is about 6499.5139818297. The cubic root of 42243682 is about 348.2736265625.

The spelling of 42243682 in words is "forty-two million, two hundred forty-three thousand, six hundred eighty-two".