42230140 has 12 divisors (see below), whose sum is σ = 88683336. Its totient is φ = 16892048.

The previous prime is 42230131. The next prime is 42230143. The reversal of 42230140 is 4103224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42230143) 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 3 ways as a sum of consecutive naturals, for example, 1055734 + ... + 1055773.

It is an arithmetic number, because the mean of its divisors is an integer number (7390278).

Almost surely, 2^42230140 is an apocalyptic number.

It is an amenable number.

42230140 is an abundant number, since it is smaller than the sum of its proper divisors (46453196).

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

42230140 is a wasteful number, since it uses less digits than its factorization.

42230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111516 (or 2111514 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42230140 is about 6498.4721281237. The cubic root of 42230140 is about 348.2364073833.

Adding to 42230140 its reverse (4103224), we get a palindrome (46333364).

The spelling of 42230140 in words is "forty-two million, two hundred thirty thousand, one hundred forty".