42191022 has 8 divisors (see below), whose sum is σ = 84382056. Its totient is φ = 14063672.

The previous prime is 42191011. The next prime is 42191053. The reversal of 42191022 is 22019124.

It is a sphenic number, since it is the product of 3 distinct primes.

42191022 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 42191022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3515913 + ... + 3515924.

It is an arithmetic number, because the mean of its divisors is an integer number (10547757).

Almost surely, 2^42191022 is an apocalyptic number.

42191022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42191022 is a wasteful number, since it uses less digits than its factorization.

42191022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7031842.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 42191022 is about 6495.4616464113. The cubic root of 42191022 is about 348.1288497630.

The spelling of 42191022 in words is "forty-two million, one hundred ninety-one thousand, twenty-two".