42608194 has 4 divisors (see below), whose sum is σ = 63912294. Its totient is φ = 21304096.

The previous prime is 42608191. The next prime is 42608219. The reversal of 42608194 is 49180624.

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., 30393169 + 12215025 = 5513^2 + 3495^2 .

It is not an unprimeable number, because it can be changed into a prime (42608191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10652047 + ... + 10652050.

Almost surely, 2^42608194 is an apocalyptic number.

42608194 is a deficient number, since it is larger than the sum of its proper divisors (21304100).

42608194 is a wasteful number, since it uses less digits than its factorization.

42608194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21304099.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 42608194 is about 6527.4952317102. The cubic root of 42608194 is about 349.2724861082.

The spelling of 42608194 in words is "forty-two million, six hundred eight thousand, one hundred ninety-four".