42143030 has 16 divisors (see below), whose sum is σ = 76220784. Its totient is φ = 16776480.

The previous prime is 42143029. The next prime is 42143077. The reversal of 42143030 is 3034124.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7877 + ... + 12096.

It is an arithmetic number, because the mean of its divisors is an integer number (4763799).

Almost surely, 2^42143030 is an apocalyptic number.

42143030 is a deficient number, since it is larger than the sum of its proper divisors (34077754).

42143030 is a wasteful number, since it uses less digits than its factorization.

42143030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20191.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 42143030 is about 6491.7663235825. The cubic root of 42143030 is about 347.9968016177.

Adding to 42143030 its reverse (3034124), we get a palindrome (45177154).

The spelling of 42143030 in words is "forty-two million, one hundred forty-three thousand, thirty".