42246229 has 4 divisors (see below), whose sum is σ = 42309676. Its totient is φ = 42182784.

The previous prime is 42246227. The next prime is 42246233. The reversal of 42246229 is 92264224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26801329 + 15444900 = 5177^2 + 3930^2 .

It is a cyclic number.

It is not a de Polignac number, because 42246229 - 2¹ = 42246227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42246229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42246223) 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, 30714 + ... + 32059.

It is an arithmetic number, because the mean of its divisors is an integer number (10577419).

Almost surely, 2^42246229 is an apocalyptic number.

It is an amenable number.

42246229 is a deficient number, since it is larger than the sum of its proper divisors (63447).

42246229 is an equidigital number, since it uses as much as digits as its factorization.

42246229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63446.

The product of its digits is 13824, while the sum is 31.

The square root of 42246229 is about 6499.7099166040. The cubic root of 42246229 is about 348.2806259137.

The spelling of 42246229 in words is "forty-two million, two hundred forty-six thousand, two hundred twenty-nine".