42169497 has 8 divisors (see below), whose sum is σ = 56434560. Its totient is φ = 28008720.

The previous prime is 42169487. The next prime is 42169513. The reversal of 42169497 is 79496124.

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

It is not a de Polignac number, because 42169497 - 2⁶ = 42169433 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42169427) 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, 25122 + ... + 26747.

It is an arithmetic number, because the mean of its divisors is an integer number (7054320).

Almost surely, 2^42169497 is an apocalyptic number.

It is an amenable number.

42169497 is a deficient number, since it is larger than the sum of its proper divisors (14265063).

42169497 is a wasteful number, since it uses less digits than its factorization.

42169497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52143.

The product of its digits is 108864, while the sum is 42.

The square root of 42169497 is about 6493.8045089146. The cubic root of 42169497 is about 348.0696369429.

The spelling of 42169497 in words is "forty-two million, one hundred sixty-nine thousand, four hundred ninety-seven".