42672245 has 64 divisors (see below), whose sum is σ = 68567040. Its totient is φ = 24710400.

The previous prime is 42672241. The next prime is 42672251. The reversal of 42672245 is 54227624.

It is not a de Polignac number, because 42672245 - 2² = 42672241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42672241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 540116 + ... + 540194.

It is an arithmetic number, because the mean of its divisors is an integer number (1071360).

Almost surely, 2^42672245 is an apocalyptic number.

It is an amenable number.

42672245 is a deficient number, since it is larger than the sum of its proper divisors (25894795).

42672245 is a wasteful number, since it uses less digits than its factorization.

42672245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186.

The product of its digits is 26880, while the sum is 32.

The square root of 42672245 is about 6532.3996356622. The cubic root of 42672245 is about 349.4474137404.

Adding to 42672245 its reverse (54227624), we get a palindrome (96899869).

The spelling of 42672245 in words is "forty-two million, six hundred seventy-two thousand, two hundred forty-five".