42920229 has 8 divisors (see below), whose sum is σ = 62429472. Its totient is φ = 26012240.

The previous prime is 42920209. The next prime is 42920263. The reversal of 42920229 is 92202924.

42920229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42920229 - 2⁸ = 42919973 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42920196 and 42920205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42920209) 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 7 ways as a sum of consecutive naturals, for example, 650274 + ... + 650339.

It is an arithmetic number, because the mean of its divisors is an integer number (7803684).

Almost surely, 2^42920229 is an apocalyptic number.

It is an amenable number.

42920229 is a deficient number, since it is larger than the sum of its proper divisors (19509243).

42920229 is a wasteful number, since it uses less digits than its factorization.

42920229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300627.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 42920229 is about 6551.3532189922. The cubic root of 42920229 is about 350.1230288578.

The spelling of 42920229 in words is "forty-two million, nine hundred twenty thousand, two hundred twenty-nine".