42489715 has 8 divisors (see below), whose sum is σ = 53987040. Its totient is φ = 31992192.

The previous prime is 42489709. The next prime is 42489761. The reversal of 42489715 is 51798424.

42489715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42489715 - 2⁵ = 42489683 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249855 + ... + 250024.

It is an arithmetic number, because the mean of its divisors is an integer number (6748380).

Almost surely, 2^42489715 is an apocalyptic number.

42489715 is a deficient number, since it is larger than the sum of its proper divisors (11497325).

42489715 is a wasteful number, since it uses less digits than its factorization.

42489715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499901.

The product of its digits is 80640, while the sum is 40.

The square root of 42489715 is about 6518.4135339820. The cubic root of 42489715 is about 348.9484492951.

The spelling of 42489715 in words is "forty-two million, four hundred eighty-nine thousand, seven hundred fifteen".