42272522 has 4 divisors (see below), whose sum is σ = 63408786. Its totient is φ = 21136260.

The previous prime is 42272513. The next prime is 42272563. The reversal of 42272522 is 22527224.

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

It can be written as a sum of positive squares in only one way, i.e., 41460721 + 811801 = 6439^2 + 901^2 .

It is a super-2 number, since 2×42272522² = 3573932232480968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42272491 and 42272500.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10568129 + ... + 10568132.

Almost surely, 2^42272522 is an apocalyptic number.

42272522 is a deficient number, since it is larger than the sum of its proper divisors (21136264).

42272522 is a wasteful number, since it uses less digits than its factorization.

42272522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21136263.

The product of its digits is 4480, while the sum is 26.

The square root of 42272522 is about 6501.7322307213. The cubic root of 42272522 is about 348.3528646563.

Adding to 42272522 its reverse (22527224), we get a palindrome (64799746).

The spelling of 42272522 in words is "forty-two million, two hundred seventy-two thousand, five hundred twenty-two".