42272330 has 16 divisors (see below), whose sum is σ = 76946760. Its totient is φ = 16718592.

The previous prime is 42272327. The next prime is 42272339. The reversal of 42272330 is 3327224.

It can be written as a sum of positive squares in 4 ways, for example, as 36735721 + 5536609 = 6061^2 + 2353^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42272296 and 42272305.

It is not an unprimeable number, because it can be changed into a prime (42272339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22859 + ... + 24638.

Almost surely, 2^42272330 is an apocalyptic number.

42272330 is a deficient number, since it is larger than the sum of its proper divisors (34674430).

42272330 is a wasteful number, since it uses less digits than its factorization.

42272330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47593.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 42272330 is about 6501.7174654087. The cubic root of 42272330 is about 348.3523372542.

Adding to 42272330 its reverse (3327224), we get a palindrome (45599554).

The spelling of 42272330 in words is "forty-two million, two hundred seventy-two thousand, three hundred thirty".