42094306 has 4 divisors (see below), whose sum is σ = 63141462. Its totient is φ = 21047152.

The previous prime is 42094237. The next prime is 42094309. The reversal of 42094306 is 60349024.

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., 22953681 + 19140625 = 4791^2 + 4375^2 .

It is not an unprimeable number, because it can be changed into a prime (42094309) 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, 10523575 + ... + 10523578.

Almost surely, 2^42094306 is an apocalyptic number.

42094306 is a deficient number, since it is larger than the sum of its proper divisors (21047156).

42094306 is a wasteful number, since it uses less digits than its factorization.

42094306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21047155.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 42094306 is about 6488.0124845749. The cubic root of 42094306 is about 347.8626368073.

It can be divided in two parts, 4209 and 4306, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 42094306 in words is "forty-two million, ninety-four thousand, three hundred six".