42672365 has 4 divisors (see below), whose sum is σ = 51206844. Its totient is φ = 34137888.

The previous prime is 42672361. The next prime is 42672389. The reversal of 42672365 is 56327624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28026436 + 14645929 = 5294^2 + 3827^2 .

It is a cyclic number.

It is not a de Polignac number, because 42672365 - 2² = 42672361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42672361) 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, 4267232 + ... + 4267241.

It is an arithmetic number, because the mean of its divisors is an integer number (12801711).

Almost surely, 2^42672365 is an apocalyptic number.

It is an amenable number.

42672365 is a deficient number, since it is larger than the sum of its proper divisors (8534479).

42672365 is an equidigital number, since it uses as much as digits as its factorization.

42672365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8534478.

The product of its digits is 60480, while the sum is 35.

The square root of 42672365 is about 6532.4088206419. The cubic root of 42672365 is about 349.4477413042.

Adding to 42672365 its reverse (56327624), we get a palindrome (98999989).

The spelling of 42672365 in words is "forty-two million, six hundred seventy-two thousand, three hundred sixty-five".