42272374 has 4 divisors (see below), whose sum is σ = 63408564. Its totient is φ = 21136186.

The previous prime is 42272371. The next prime is 42272381. The reversal of 42272374 is 47327224.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272371) 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 as a sum of consecutive naturals, namely, 10568092 + ... + 10568095.

It is an arithmetic number, because the mean of its divisors is an integer number (15852141).

Almost surely, 2^42272374 is an apocalyptic number.

42272374 is a deficient number, since it is larger than the sum of its proper divisors (21136190).

42272374 is a wasteful number, since it uses less digits than its factorization.

42272374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21136189.

The product of its digits is 18816, while the sum is 31.

The square root of 42272374 is about 6501.7208491291. The cubic root of 42272374 is about 348.3524581173.

Adding to 42272374 its reverse (47327224), we get a palindrome (89599598).

The spelling of 42272374 in words is "forty-two million, two hundred seventy-two thousand, three hundred seventy-four".