33443142 has 16 divisors (see below), whose sum is σ = 66960432. Its totient is φ = 11135360.

The previous prime is 33443129. The next prime is 33443143. The reversal of 33443142 is 24134433.

It is a super-2 number, since 2×33443142² = 2236887493664328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33443143) 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, 4042 + ... + 9122.

It is an arithmetic number, because the mean of its divisors is an integer number (4185027).

Almost surely, 2^33443142 is an apocalyptic number.

33443142 is an abundant number, since it is smaller than the sum of its proper divisors (33517290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33443142 is a wasteful number, since it uses less digits than its factorization.

33443142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183.

The product of its digits is 3456, while the sum is 24.

The square root of 33443142 is about 5783.0045823949. The cubic root of 33443142 is about 322.1828045233.

Adding to 33443142 its reverse (24134433), we get a palindrome (57577575).

The spelling of 33443142 in words is "thirty-three million, four hundred forty-three thousand, one hundred forty-two".