42272115 has 32 divisors (see below), whose sum is σ = 72394560. Its totient is φ = 20987904.

The previous prime is 42272101. The next prime is 42272119. The reversal of 42272115 is 51127224.

It is not a de Polignac number, because 42272115 - 2¹⁸ = 42009971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42272119) 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 31 ways as a sum of consecutive naturals, for example, 23881 + ... + 25589.

It is an arithmetic number, because the mean of its divisors is an integer number (2262330).

Almost surely, 2^42272115 is an apocalyptic number.

42272115 is a deficient number, since it is larger than the sum of its proper divisors (30122445).

42272115 is a wasteful number, since it uses less digits than its factorization.

42272115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831.

The product of its digits is 1120, while the sum is 24.

The square root of 42272115 is about 6501.7009312948. The cubic root of 42272115 is about 348.3517466718.

Adding to 42272115 its reverse (51127224), we get a palindrome (93399339).

The spelling of 42272115 in words is "forty-two million, two hundred seventy-two thousand, one hundred fifteen".