42194442 has 32 divisors (see below), whose sum is σ = 89640000. Its totient is φ = 13195008.

The previous prime is 42194437. The next prime is 42194473. The reversal of 42194442 is 24449124.

It is an unprimeable number.

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, 50484 + ... + 51312.

It is an arithmetic number, because the mean of its divisors is an integer number (2801250).

Almost surely, 2^42194442 is an apocalyptic number.

42194442 is an abundant number, since it is smaller than the sum of its proper divisors (47445558).

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

42194442 is a wasteful number, since it uses less digits than its factorization.

42194442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its digits is 9216, while the sum is 30.

The square root of 42194442 is about 6495.7249018104. The cubic root of 42194442 is about 348.1382559387.

The spelling of 42194442 in words is "forty-two million, one hundred ninety-four thousand, four hundred forty-two".