42509848 has 8 divisors (see below), whose sum is σ = 79705980. Its totient is φ = 21254920.

The previous prime is 42509827. The next prime is 42509879. The reversal of 42509848 is 84890524.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 42509848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2656858 + ... + 2656873.

Almost surely, 2^42509848 is an apocalyptic number.

It is an amenable number.

42509848 is a deficient number, since it is larger than the sum of its proper divisors (37196132).

42509848 is a wasteful number, since it uses less digits than its factorization.

42509848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313737 (or 5313733 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 42509848 is about 6519.9576685742. The cubic root of 42509848 is about 349.0035549428.

The spelling of 42509848 in words is "forty-two million, five hundred nine thousand, eight hundred forty-eight".