4042229 has 4 divisors (see below), whose sum is σ = 4097676. Its totient is φ = 3986784.

The previous prime is 4042217. The next prime is 4042249. The reversal of 4042229 is 9222404.

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 2656900 + 1385329 = 1630^2 + 1177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042229 is a prime.

It is a super-3 number, since 3×4042229³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042249) 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, 27614 + ... + 27759.

It is an arithmetic number, because the mean of its divisors is an integer number (1024419).

Almost surely, 2^4042229 is an apocalyptic number.

It is an amenable number.

4042229 is a deficient number, since it is larger than the sum of its proper divisors (55447).

4042229 is an equidigital number, since it uses as much as digits as its factorization.

4042229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55446.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 4042229 is about 2010.5295322377. The cubic root of 4042229 is about 159.2967704756.

The spelling of 4042229 in words is "four million, forty-two thousand, two hundred twenty-nine".