42342226 has 4 divisors (see below), whose sum is σ = 63513342. Its totient is φ = 21171112.

The previous prime is 42342221. The next prime is 42342239. The reversal of 42342226 is 62224324.

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., 30085225 + 12257001 = 5485^2 + 3501^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42342226.

It is not an unprimeable number, because it can be changed into a prime (42342221) by changing a digit.

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 as a sum of consecutive naturals, namely, 10585555 + ... + 10585558.

Almost surely, 2^42342226 is an apocalyptic number.

42342226 is a deficient number, since it is larger than the sum of its proper divisors (21171116).

42342226 is a wasteful number, since it uses less digits than its factorization.

42342226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21171115.

The product of its digits is 4608, while the sum is 25.

The square root of 42342226 is about 6507.0904404350. The cubic root of 42342226 is about 348.5442281631.

The spelling of 42342226 in words is "forty-two million, three hundred forty-two thousand, two hundred twenty-six".