42817084 has 18 divisors (see below), whose sum is σ = 79598960. Its totient is φ = 20148672.

The previous prime is 42817081. The next prime is 42817091. The reversal of 42817084 is 48071824.

42817084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42817081) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 17364 + ... + 19675.

Almost surely, 2^42817084 is an apocalyptic number.

It is an amenable number.

42817084 is a deficient number, since it is larger than the sum of its proper divisors (36781876).

42817084 is a wasteful number, since it uses less digits than its factorization.

42817084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37077 (or 37058 counting only the distinct ones).

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

The square root of 42817084 is about 6543.4764460491. The cubic root of 42817084 is about 349.8423344287.

The spelling of 42817084 in words is "forty-two million, eight hundred seventeen thousand, eighty-four".