42002022 has 8 divisors (see below), whose sum is σ = 84004056. Its totient is φ = 14000672.

The previous prime is 42002017. The next prime is 42002029. The reversal of 42002022 is 22020024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

42002022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42001989 and 42002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002029) 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 3 ways as a sum of consecutive naturals, for example, 3500163 + ... + 3500174.

It is an arithmetic number, because the mean of its divisors is an integer number (10500507).

Almost surely, 2^42002022 is an apocalyptic number.

42002022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42002022 is a wasteful number, since it uses less digits than its factorization.

42002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000342.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 42002022 is about 6480.8966972171. The cubic root of 42002022 is about 347.6082425943.

Adding to 42002022 its reverse (22020024), we get a palindrome (64022046).

The spelling of 42002022 in words is "forty-two million, two thousand, twenty-two".