42430673 has 4 divisors (see below), whose sum is σ = 42444288. Its totient is φ = 42417060.

The previous prime is 42430669. The next prime is 42430721. The reversal of 42430673 is 37603424.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42430673 - 2² = 42430669 is a prime.

It is a super-2 number, since 2×42430673² = 3600724022465858, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42430603) 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, 440 + ... + 9222.

It is an arithmetic number, because the mean of its divisors is an integer number (10611072).

Almost surely, 2^42430673 is an apocalyptic number.

It is an amenable number.

42430673 is a deficient number, since it is larger than the sum of its proper divisors (13615).

42430673 is an equidigital number, since it uses as much as digits as its factorization.

42430673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13614.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 42430673 is about 6513.8830968939. The cubic root of 42430673 is about 348.7867461270.

The spelling of 42430673 in words is "forty-two million, four hundred thirty thousand, six hundred seventy-three".