42162822 has 64 divisors (see below), whose sum is σ = 106868160. Its totient is φ = 12206592.

The previous prime is 42162817. The next prime is 42162823. The reversal of 42162822 is 22826124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42162823) 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 31 ways as a sum of consecutive naturals, for example, 10168 + ... + 13700.

It is an arithmetic number, because the mean of its divisors is an integer number (1669815).

Almost surely, 2^42162822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42162822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53434080).

42162822 is an abundant number, since it is smaller than the sum of its proper divisors (64705338).

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

42162822 is a wasteful number, since it uses less digits than its factorization.

42162822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574 (or 3568 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 42162822 is about 6493.2905371622. The cubic root of 42162822 is about 348.0512706861.

Adding to 42162822 its reverse (22826124), we get a palindrome (64988946).

The spelling of 42162822 in words is "forty-two million, one hundred sixty-two thousand, eight hundred twenty-two".