42740022 has 32 divisors (see below), whose sum is σ = 94203648. Its totient is φ = 12843936.

The previous prime is 42740021. The next prime is 42740051. The reversal of 42740022 is 22004724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42740021) 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 15 ways as a sum of consecutive naturals, for example, 3018 + ... + 9725.

It is an arithmetic number, because the mean of its divisors is an integer number (2943864).

Almost surely, 2^42740022 is an apocalyptic number.

42740022 is an abundant number, since it is smaller than the sum of its proper divisors (51463626).

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

42740022 is a wasteful number, since it uses less digits than its factorization.

42740022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12804.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 42740022 is about 6537.5853340511. The cubic root of 42740022 is about 349.6323268217.

Adding to 42740022 its reverse (22004724), we get a palindrome (64744746).

The spelling of 42740022 in words is "forty-two million, seven hundred forty thousand, twenty-two".