42304143 has 32 divisors (see below), whose sum is σ = 69258240. Its totient is φ = 22417920.

The previous prime is 42304079. The next prime is 42304147. The reversal of 42304143 is 34140324.

It is not a de Polignac number, because 42304143 - 2⁶ = 42304079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42304147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24513 + ... + 26181.

It is an arithmetic number, because the mean of its divisors is an integer number (2164320).

Almost surely, 2^42304143 is an apocalyptic number.

42304143 is a deficient number, since it is larger than the sum of its proper divisors (26954097).

42304143 is a wasteful number, since it uses less digits than its factorization.

42304143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42304143 is about 6504.1635127048. The cubic root of 42304143 is about 348.4397021572.

Adding to 42304143 its reverse (34140324), we get a palindrome (76444467).

The spelling of 42304143 in words is "forty-two million, three hundred four thousand, one hundred forty-three".