42808028 has 12 divisors (see below), whose sum is σ = 75042912. Its totient is φ = 21367200.

The previous prime is 42808027. The next prime is 42808033. The reversal of 42808028 is 82080824.

42808028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42808028² = 3665054522497568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42807985 and 42808003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42808027) 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 3 ways as a sum of consecutive naturals, for example, 6500 + ... + 11307.

It is an arithmetic number, because the mean of its divisors is an integer number (6253576).

Almost surely, 2^42808028 is an apocalyptic number.

It is an amenable number.

42808028 is a deficient number, since it is larger than the sum of its proper divisors (32234884).

42808028 is a wasteful number, since it uses less digits than its factorization.

42808028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18412 (or 18410 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 42808028 is about 6542.7844225528. The cubic root of 42808028 is about 349.8176682965.

The spelling of 42808028 in words is "forty-two million, eight hundred eight thousand, twenty-eight".