42243033 has 8 divisors (see below), whose sum is σ = 64370368. Its totient is φ = 24138864.

The previous prime is 42243029. The next prime is 42243037. The reversal of 42243033 is 33034224.

It is an interprime number because it is at equal distance from previous prime (42243029) and next prime (42243037).

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

It is not a de Polignac number, because 42243033 - 2² = 42243029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2011573 = 42243033 / (4 + 2 + 2 + 4 + 3 + 0 + 3 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42243037) 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, 1005766 + ... + 1005807.

It is an arithmetic number, because the mean of its divisors is an integer number (8046296).

Almost surely, 2^42243033 is an apocalyptic number.

It is an amenable number.

42243033 is a deficient number, since it is larger than the sum of its proper divisors (22127335).

42243033 is a wasteful number, since it uses less digits than its factorization.

42243033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011583.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 42243033 is about 6499.4640548279. The cubic root of 42243033 is about 348.2718430158.

Adding to 42243033 its reverse (33034224), we get a palindrome (75277257).

The spelling of 42243033 in words is "forty-two million, two hundred forty-three thousand, thirty-three".