42812508 has 12 divisors (see below), whose sum is σ = 99895880. Its totient is φ = 14270832.

The previous prime is 42812507. The next prime is 42812527. The reversal of 42812508 is 80521824.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42812501) 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 3 ways as a sum of consecutive naturals, for example, 1783843 + ... + 1783866.

Almost surely, 2^42812508 is an apocalyptic number.

It is an amenable number.

42812508 is an abundant number, since it is smaller than the sum of its proper divisors (57083372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42812508 is a wasteful number, since it uses less digits than its factorization.

42812508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567716 (or 3567714 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 42812508 is about 6543.1267754797. The cubic root of 42812508 is about 349.8298710582.

The spelling of 42812508 in words is "forty-two million, eight hundred twelve thousand, five hundred eight".