42715905 has 8 divisors (see below), whose sum is σ = 68345472. Its totient is φ = 22781808.

The previous prime is 42715859. The next prime is 42715919. The reversal of 42715905 is 50951724.

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

It is not a de Polignac number, because 42715905 - 2¹¹ = 42713857 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 1423849 + ... + 1423878.

It is an arithmetic number, because the mean of its divisors is an integer number (8543184).

Almost surely, 2^42715905 is an apocalyptic number.

It is an amenable number.

42715905 is a deficient number, since it is larger than the sum of its proper divisors (25629567).

42715905 is a wasteful number, since it uses less digits than its factorization.

42715905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847735.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 42715905 is about 6535.7405854272. The cubic root of 42715905 is about 349.5665518647.

The spelling of 42715905 in words is "forty-two million, seven hundred fifteen thousand, nine hundred five".