42219023 has 16 divisors (see below), whose sum is σ = 52825344. Its totient is φ = 32780160.

The previous prime is 42219017. The next prime is 42219059. The reversal of 42219023 is 32091224.

It is not a de Polignac number, because 42219023 - 2⁸ = 42218767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42219023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42219013) 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, 25136 + ... + 26762.

It is an arithmetic number, because the mean of its divisors is an integer number (3301584).

Almost surely, 2^42219023 is an apocalyptic number.

42219023 is a deficient number, since it is larger than the sum of its proper divisors (10606321).

42219023 is a wasteful number, since it uses less digits than its factorization.

42219023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 42219023 is about 6497.6167169201. The cubic root of 42219023 is about 348.2058471886.

The spelling of 42219023 in words is "forty-two million, two hundred nineteen thousand, twenty-three".