42569999 has 8 divisors (see below), whose sum is σ = 44227920. Its totient is φ = 40924800.

The previous prime is 42569993. The next prime is 42570029. The reversal of 42569999 is 99996524.

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

It is not a de Polignac number, because 42569999 - 2⁴ = 42569983 is a prime.

It is a Duffinian number.

42569999 is a modest number, since divided by 9999 gives 4256 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 42569999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42569993) 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, 3944 + ... + 10034.

It is an arithmetic number, because the mean of its divisors is an integer number (5528490).

Almost surely, 2^42569999 is an apocalyptic number.

42569999 is a deficient number, since it is larger than the sum of its proper divisors (1657921).

42569999 is a wasteful number, since it uses less digits than its factorization.

42569999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361.

The product of its digits is 1574640, while the sum is 53.

The square root of 42569999 is about 6524.5688746460. The cubic root of 42569999 is about 349.1680895155.

The spelling of 42569999 in words is "forty-two million, five hundred sixty-nine thousand, nine hundred ninety-nine".