42434913 has 4 divisors (see below), whose sum is σ = 56579888. Its totient is φ = 28289940.

The previous prime is 42434911. The next prime is 42434921. The reversal of 42434913 is 31943424.

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 not a de Polignac number, because 42434913 - 2¹ = 42434911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42434911) 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, 7072483 + ... + 7072488.

It is an arithmetic number, because the mean of its divisors is an integer number (14144972).

Almost surely, 2^42434913 is an apocalyptic number.

It is an amenable number.

42434913 is a deficient number, since it is larger than the sum of its proper divisors (14144975).

42434913 is a wasteful number, since it uses less digits than its factorization.

42434913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14144974.

The product of its digits is 10368, while the sum is 30.

The square root of 42434913 is about 6514.2085474753. The cubic root of 42434913 is about 348.7983635604.

The spelling of 42434913 in words is "forty-two million, four hundred thirty-four thousand, nine hundred thirteen".