42645022 has 16 divisors (see below), whose sum is σ = 75627360. Its totient is φ = 17646048.

The previous prime is 42645017. The next prime is 42645037. The reversal of 42645022 is 22054624.

42645022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52113 + ... + 52924.

It is an arithmetic number, because the mean of its divisors is an integer number (4726710).

Almost surely, 2^42645022 is an apocalyptic number.

42645022 is a deficient number, since it is larger than the sum of its proper divisors (32982338).

42645022 is a wasteful number, since it uses less digits than its factorization.

42645022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105075.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 42645022 is about 6530.3156125872. The cubic root of 42645022 is about 349.3730872812.

Adding to 42645022 its reverse (22054624), we get a palindrome (64699646).

The spelling of 42645022 in words is "forty-two million, six hundred forty-five thousand, twenty-two".