42630142 has 16 divisors (see below), whose sum is σ = 66361680. Its totient is φ = 20521728.

The previous prime is 42630139. The next prime is 42630143. The reversal of 42630142 is 24103624.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4209 + ... + 10147.

It is an arithmetic number, because the mean of its divisors is an integer number (4147605).

Almost surely, 2^42630142 is an apocalyptic number.

42630142 is a deficient number, since it is larger than the sum of its proper divisors (23731538).

42630142 is a wasteful number, since it uses less digits than its factorization.

42630142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42630142 is about 6529.1762114374. The cubic root of 42630142 is about 349.3324473186.

Adding to 42630142 its reverse (24103624), we get a palindrome (66733766).

It can be divided in two parts, 42630 and 142, that multiplied together give a triangular number (6053460 = T₃₄₇₉).

The spelling of 42630142 in words is "forty-two million, six hundred thirty thousand, one hundred forty-two".