42120622 has 16 divisors (see below), whose sum is σ = 65187792. Its totient is φ = 20401920.

The previous prime is 42120593. The next prime is 42120623. The reversal of 42120622 is 22602124.

42120622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42120622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120623) by changing a digit.

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, 5598 + ... + 10750.

It is an arithmetic number, because the mean of its divisors is an integer number (4074237).

Almost surely, 2^42120622 is an apocalyptic number.

42120622 is a deficient number, since it is larger than the sum of its proper divisors (23067170).

42120622 is a wasteful number, since it uses less digits than its factorization.

42120622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 42120622 is about 6490.0402155919. The cubic root of 42120622 is about 347.9351125331.

Adding to 42120622 its reverse (22602124), we get a palindrome (64722746).

The spelling of 42120622 in words is "forty-two million, one hundred twenty thousand, six hundred twenty-two".