42229732 has 6 divisors (see below), whose sum is σ = 73902038. Its totient is φ = 21114864.

The previous prime is 42229709. The next prime is 42229739. The reversal of 42229732 is 23792224.

42229732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 21381376 + 20848356 = 4624^2 + 4566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42229694 and 42229703.

It is not an unprimeable number, because it can be changed into a prime (42229739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278713 + ... + 5278720.

Almost surely, 2^42229732 is an apocalyptic number.

It is an amenable number.

42229732 is a deficient number, since it is larger than the sum of its proper divisors (31672306).

42229732 is a wasteful number, since it uses less digits than its factorization.

42229732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10557437 (or 10557435 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 42229732 is about 6498.4407360535. The cubic root of 42229732 is about 348.2352859022.

The spelling of 42229732 in words is "forty-two million, two hundred twenty-nine thousand, seven hundred thirty-two".