42722142 has 16 divisors (see below), whose sum is σ = 85589760. Its totient is φ = 14216472.

The previous prime is 42722131. The next prime is 42722149. The reversal of 42722142 is 24122724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42722149) 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, 2038 + ... + 9465.

It is an arithmetic number, because the mean of its divisors is an integer number (5349360).

Almost surely, 2^42722142 is an apocalyptic number.

42722142 is an abundant number, since it is smaller than the sum of its proper divisors (42867618).

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

42722142 is a wasteful number, since it uses less digits than its factorization.

42722142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12127.

The product of its digits is 1792, while the sum is 24.

The square root of 42722142 is about 6536.2177136323. The cubic root of 42722142 is about 349.5835645791.

Adding to 42722142 its reverse (24122724), we get a palindrome (66844866).

The spelling of 42722142 in words is "forty-two million, seven hundred twenty-two thousand, one hundred forty-two".