42142230 has 96 divisors (see below), whose sum is σ = 119246400. Its totient is φ = 10264320.

The previous prime is 42142229. The next prime is 42142241. The reversal of 42142230 is 3224124.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211671 + ... + 211869.

It is an arithmetic number, because the mean of its divisors is an integer number (1242150).

Almost surely, 2^42142230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42142230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59623200).

42142230 is an abundant number, since it is smaller than the sum of its proper divisors (77104170).

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

42142230 is a wasteful number, since it uses less digits than its factorization.

42142230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42142230 is about 6491.7047067777. The cubic root of 42142230 is about 347.9945995991.

Adding to 42142230 its reverse (3224124), we get a palindrome (45366354).

The spelling of 42142230 in words is "forty-two million, one hundred forty-two thousand, two hundred thirty".