42467509 has 4 divisors (see below), whose sum is σ = 48534304. Its totient is φ = 36400716.

The previous prime is 42467501. The next prime is 42467561. The reversal of 42467509 is 90576424.

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 42467509 - 2³ = 42467501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42467501) 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, 3033387 + ... + 3033400.

It is an arithmetic number, because the mean of its divisors is an integer number (12133576).

Almost surely, 2^42467509 is an apocalyptic number.

It is an amenable number.

42467509 is a deficient number, since it is larger than the sum of its proper divisors (6066795).

42467509 is an equidigital number, since it uses as much as digits as its factorization.

42467509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6066794.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 42467509 is about 6516.7099828057. The cubic root of 42467509 is about 348.8876494870.

The spelling of 42467509 in words is "forty-two million, four hundred sixty-seven thousand, five hundred nine".