42272230 has 128 divisors (see below), whose sum is σ = 105670656. Its totient is φ = 11750400.

The previous prime is 42272213. The next prime is 42272231. The reversal of 42272230 is 3227224.

42272230 = 876² + 877² + ... + 927².

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272231) 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, 410359 + ... + 410461.

It is an arithmetic number, because the mean of its divisors is an integer number (825552).

Almost surely, 2^42272230 is an apocalyptic number.

42272230 is an abundant number, since it is smaller than the sum of its proper divisors (63398426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42272230 is a wasteful number, since it uses less digits than its factorization.

42272230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 42272230 is about 6501.7097751284. The cubic root of 42272230 is about 348.3520625650.

Adding to 42272230 its reverse (3227224), we get a palindrome (45499454).

It can be divided in two parts, 42 and 272230, that added together give a palindrome (272272).

The spelling of 42272230 in words is "forty-two million, two hundred seventy-two thousand, two hundred thirty".