42136722 has 24 divisors (see below), whose sum is σ = 93240576. Its totient is φ = 13746456.

The previous prime is 42136709. The next prime is 42136723. The reversal of 42136722 is 22763124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42136723) 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 11 ways as a sum of consecutive naturals, for example, 24058 + ... + 25749.

It is an arithmetic number, because the mean of its divisors is an integer number (3885024).

Almost surely, 2^42136722 is an apocalyptic number.

42136722 is an abundant number, since it is smaller than the sum of its proper divisors (51103854).

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

42136722 is a wasteful number, since it uses less digits than its factorization.

42136722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49862 (or 49859 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 42136722 is about 6491.2804592006. The cubic root of 42136722 is about 347.9794379448.

Adding to 42136722 its reverse (22763124), we get a palindrome (64899846).

The spelling of 42136722 in words is "forty-two million, one hundred thirty-six thousand, seven hundred twenty-two".