8529420 has 24 divisors (see below), whose sum is σ = 23882544. Its totient is φ = 2274496.

The previous prime is 8529413. The next prime is 8529439. The reversal of 8529420 is 249258.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71019 + ... + 71138.

It is an arithmetic number, because the mean of its divisors is an integer number (995106).

Almost surely, 2^8529420 is an apocalyptic number.

It is an amenable number.

8529420 is an abundant number, since it is smaller than the sum of its proper divisors (15353124).

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

8529420 is a wasteful number, since it uses less digits than its factorization.

8529420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142169 (or 142167 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 8529420 is about 2920.5170775053. The cubic root of 8529420 is about 204.3179394427.

The spelling of 8529420 in words is "eight million, five hundred twenty-nine thousand, four hundred twenty".