42433229 has 4 divisors (see below), whose sum is σ = 44278176. Its totient is φ = 40588284.

The previous prime is 42433201. The next prime is 42433249. The reversal of 42433229 is 92233424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42433229 - 2¹⁶ = 42367693 is a prime.

It is a super-3 number, since 3×42433229³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42433249) 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, 922439 + ... + 922484.

It is an arithmetic number, because the mean of its divisors is an integer number (11069544).

Almost surely, 2^42433229 is an apocalyptic number.

It is an amenable number.

42433229 is a deficient number, since it is larger than the sum of its proper divisors (1844947).

42433229 is a wasteful number, since it uses less digits than its factorization.

42433229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844946.

The product of its digits is 10368, while the sum is 29.

The square root of 42433229 is about 6514.0792902758. The cubic root of 42433229 is about 348.7937495592.

The spelling of 42433229 in words is "forty-two million, four hundred thirty-three thousand, two hundred twenty-nine".