82568428 has 12 divisors (see below), whose sum is σ = 147855400. Its totient is φ = 40324032.

The previous prime is 82568411. The next prime is 82568429. The reversal of 82568428 is 82486528.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (82568429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239853 + ... + 240196.

Almost surely, 2^82568428 is an apocalyptic number.

It is an amenable number.

82568428 is a deficient number, since it is larger than the sum of its proper divisors (65286972).

82568428 is a wasteful number, since it uses less digits than its factorization.

82568428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480096 (or 480094 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The square root of 82568428 is about 9086.7171189600. The cubic root of 82568428 is about 435.4497097588.

The spelling of 82568428 in words is "eighty-two million, five hundred sixty-eight thousand, four hundred twenty-eight".