42305426 has 4 divisors (see below), whose sum is σ = 63458142. Its totient is φ = 21152712.

The previous prime is 42305423. The next prime is 42305443. The reversal of 42305426 is 62450324.

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., 41667025 + 638401 = 6455^2 + 799^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42305395 and 42305404.

It is not an unprimeable number, because it can be changed into a prime (42305423) 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, 10576355 + ... + 10576358.

Almost surely, 2^42305426 is an apocalyptic number.

42305426 is a deficient number, since it is larger than the sum of its proper divisors (21152716).

42305426 is a wasteful number, since it uses less digits than its factorization.

42305426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21152715.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42305426 is about 6504.2621410887. The cubic root of 42305426 is about 348.4432246145.

The spelling of 42305426 in words is "forty-two million, three hundred five thousand, four hundred twenty-six".