42434617 has 4 divisors (see below), whose sum is σ = 42452560. Its totient is φ = 42416676.

The previous prime is 42434611. The next prime is 42434621. The reversal of 42434617 is 71643424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42434617 - 2⁷ = 42434489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42434611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4767 + ... + 10372.

It is an arithmetic number, because the mean of its divisors is an integer number (10613140).

Almost surely, 2^42434617 is an apocalyptic number.

It is an amenable number.

42434617 is a deficient number, since it is larger than the sum of its proper divisors (17943).

42434617 is a wasteful number, since it uses less digits than its factorization.

42434617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942.

The product of its digits is 16128, while the sum is 31.

The square root of 42434617 is about 6514.1858278683. The cubic root of 42434617 is about 348.7975525571.

The spelling of 42434617 in words is "forty-two million, four hundred thirty-four thousand, six hundred seventeen".