42287812 has 12 divisors (see below), whose sum is σ = 84575680. Its totient is φ = 18123336.

The previous prime is 42287809. The next prime is 42287821. The reversal of 42287812 is 21878224.

42287812 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755112 + ... + 755167.

Almost surely, 2^42287812 is an apocalyptic number.

It is an amenable number.

42287812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42287812 is a wasteful number, since it uses less digits than its factorization.

42287812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510290 (or 1510288 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 42287812 is about 6502.9079649031. The cubic root of 42287812 is about 348.3948594163.

The spelling of 42287812 in words is "forty-two million, two hundred eighty-seven thousand, eight hundred twelve".