42022239 has 16 divisors (see below), whose sum is σ = 64124928. Its totient is φ = 23978592.

The previous prime is 42022207. The next prime is 42022241. The reversal of 42022239 is 93222024.

42022239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42022239 - 2⁵ = 42022207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42022259) 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 15 ways as a sum of consecutive naturals, for example, 26034 + ... + 27600.

It is an arithmetic number, because the mean of its divisors is an integer number (4007808).

Almost surely, 2^42022239 is an apocalyptic number.

42022239 is a deficient number, since it is larger than the sum of its proper divisors (22102689).

42022239 is a wasteful number, since it uses less digits than its factorization.

42022239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 42022239 is about 6482.4562474420. The cubic root of 42022239 is about 347.6640055335.

It can be divided in two parts, 4202 and 2239, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 42022239 in words is "forty-two million, twenty-two thousand, two hundred thirty-nine".