42732142 has 16 divisors (see below), whose sum is σ = 65062800. Its totient is φ = 21047040.

The previous prime is 42732119. The next prime is 42732143. The reversal of 42732142 is 24123724.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42732143) 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 7 ways as a sum of consecutive naturals, for example, 45534 + ... + 46462.

It is an arithmetic number, because the mean of its divisors is an integer number (4066425).

Almost surely, 2^42732142 is an apocalyptic number.

42732142 is a deficient number, since it is larger than the sum of its proper divisors (22330658).

42732142 is a wasteful number, since it uses less digits than its factorization.

42732142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251.

The product of its digits is 2688, while the sum is 25.

The square root of 42732142 is about 6536.9826372723. The cubic root of 42732142 is about 349.6108382032.

Adding to 42732142 its reverse (24123724), we get a palindrome (66855866).

The spelling of 42732142 in words is "forty-two million, seven hundred thirty-two thousand, one hundred forty-two".