42808029 has 16 divisors (see below), whose sum is σ = 62622720. Its totient is φ = 25795760.

The previous prime is 42808027. The next prime is 42808033. The reversal of 42808029 is 92080824.

It is a cyclic number.

It is not a de Polignac number, because 42808029 - 2¹ = 42808027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2284 + ... + 9530.

It is an arithmetic number, because the mean of its divisors is an integer number (3913920).

Almost surely, 2^42808029 is an apocalyptic number.

It is an amenable number.

42808029 is a deficient number, since it is larger than the sum of its proper divisors (19814691).

42808029 is a wasteful number, since it uses less digits than its factorization.

42808029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7440.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 42808029 is about 6542.7844989729. The cubic root of 42808029 is about 349.8176710204.

The spelling of 42808029 in words is "forty-two million, eight hundred eight thousand, twenty-nine".