42210338 has 4 divisors (see below), whose sum is σ = 63315510. Its totient is φ = 21105168.

The previous prime is 42210331. The next prime is 42210373. The reversal of 42210338 is 83301224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23746129 + 18464209 = 4873^2 + 4297^2 .

It is not an unprimeable number, because it can be changed into a prime (42210331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10552583 + ... + 10552586.

Almost surely, 2^42210338 is an apocalyptic number.

42210338 is a deficient number, since it is larger than the sum of its proper divisors (21105172).

42210338 is a wasteful number, since it uses less digits than its factorization.

42210338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21105171.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 42210338 is about 6496.9483605767. The cubic root of 42210338 is about 348.1819687332.

The spelling of 42210338 in words is "forty-two million, two hundred ten thousand, three hundred thirty-eight".