42194505 has 8 divisors (see below), whose sum is σ = 67511232. Its totient is φ = 22503728.

The previous prime is 42194501. The next prime is 42194531. The reversal of 42194505 is 50549124.

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

It is a cyclic number.

It is not a de Polignac number, because 42194505 - 2² = 42194501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42194501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1406469 + ... + 1406498.

It is an arithmetic number, because the mean of its divisors is an integer number (8438904).

Almost surely, 2^42194505 is an apocalyptic number.

It is an amenable number.

42194505 is a deficient number, since it is larger than the sum of its proper divisors (25316727).

42194505 is a wasteful number, since it uses less digits than its factorization.

42194505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812975.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 42194505 is about 6495.7297511519. The cubic root of 42194505 is about 348.1384292056.

The spelling of 42194505 in words is "forty-two million, one hundred ninety-four thousand, five hundred five".