42722032 has 20 divisors (see below), whose sum is σ = 87131080. Its totient is φ = 20236608.

The previous prime is 42722027. The next prime is 42722033. The reversal of 42722032 is 23022724.

42722032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42721994 and 42722012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42722033) 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 in 3 ways as a sum of consecutive naturals, for example, 69963 + ... + 70570.

It is an arithmetic number, because the mean of its divisors is an integer number (4356554).

Almost surely, 2^42722032 is an apocalyptic number.

It is an amenable number.

42722032 is an abundant number, since it is smaller than the sum of its proper divisors (44409048).

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

42722032 is a wasteful number, since it uses less digits than its factorization.

42722032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140560 (or 140554 counting only the distinct ones).

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

The square root of 42722032 is about 6536.2092989744. The cubic root of 42722032 is about 349.5832645456.

Adding to 42722032 its reverse (23022724), we get a palindrome (65744756).

The spelling of 42722032 in words is "forty-two million, seven hundred twenty-two thousand, thirty-two".