42578195 has 8 divisors (see below), whose sum is σ = 55738800. Its totient is φ = 30965920.

The previous prime is 42578167. The next prime is 42578197. The reversal of 42578195 is 59187524.

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

It is not a de Polignac number, because 42578195 - 2¹² = 42574099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42578197) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 387020 + ... + 387129.

It is an arithmetic number, because the mean of its divisors is an integer number (6967350).

Almost surely, 2^42578195 is an apocalyptic number.

42578195 is a deficient number, since it is larger than the sum of its proper divisors (13160605).

42578195 is a wasteful number, since it uses less digits than its factorization.

42578195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774165.

The product of its digits is 100800, while the sum is 41.

The square root of 42578195 is about 6525.1969318941. The cubic root of 42578195 is about 349.1904965164.

The spelling of 42578195 in words is "forty-two million, five hundred seventy-eight thousand, one hundred ninety-five".