42143233 has 8 divisors (see below), whose sum is σ = 46022400. Its totient is φ = 38272080.

The previous prime is 42143219. The next prime is 42143249. The reversal of 42143233 is 33234124.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-42143233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42143263) 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, 16368 + ... + 18766.

It is an arithmetic number, because the mean of its divisors is an integer number (5752800).

Almost surely, 2^42143233 is an apocalyptic number.

It is an amenable number.

42143233 is a deficient number, since it is larger than the sum of its proper divisors (3879167).

42143233 is a wasteful number, since it uses less digits than its factorization.

42143233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007.

The product of its digits is 1728, while the sum is 22.

The square root of 42143233 is about 6491.7819587537. The cubic root of 42143233 is about 347.9973603755.

Adding to 42143233 its reverse (33234124), we get a palindrome (75377357).

It can be divided in two parts, 4214 and 3233, that added together give a palindrome (7447).

The spelling of 42143233 in words is "forty-two million, one hundred forty-three thousand, two hundred thirty-three".