42219311 has 12 divisors (see below), whose sum is σ = 45015912. Its totient is φ = 39587184.

The previous prime is 42219263. The next prime is 42219377. The reversal of 42219311 is 11391224.

42219311 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 42219311 - 2²² = 38025007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42219811) 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 11 ways as a sum of consecutive naturals, for example, 38081 + ... + 39173.

It is an arithmetic number, because the mean of its divisors is an integer number (3751326).

Almost surely, 2^42219311 is an apocalyptic number.

42219311 is a deficient number, since it is larger than the sum of its proper divisors (2796601).

42219311 is a wasteful number, since it uses less digits than its factorization.

42219311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1219 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 42219311 is about 6497.6388788544. The cubic root of 42219311 is about 348.2066389570.

The spelling of 42219311 in words is "forty-two million, two hundred nineteen thousand, three hundred eleven".