42806229 has 8 divisors (see below), whose sum is σ = 57797760. Its totient is φ = 28176096.

The previous prime is 42806219. The next prime is 42806261. The reversal of 42806229 is 92260824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42806229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42806229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42806209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90072 + ... + 90545.

It is an arithmetic number, because the mean of its divisors is an integer number (7224720).

Almost surely, 2^42806229 is an apocalyptic number.

It is an amenable number.

42806229 is a deficient number, since it is larger than the sum of its proper divisors (14991531).

42806229 is a wasteful number, since it uses less digits than its factorization.

42806229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180699.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 42806229 is about 6542.6469414145. The cubic root of 42806229 is about 349.8127678855.

The spelling of 42806229 in words is "forty-two million, eight hundred six thousand, two hundred twenty-nine".