42502142 has 16 divisors (see below), whose sum is σ = 68321232. Its totient is φ = 19758720.

The previous prime is 42502127. The next prime is 42502153. The reversal of 42502142 is 24120524.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4709 + ... + 10352.

It is an arithmetic number, because the mean of its divisors is an integer number (4270077).

Almost surely, 2^42502142 is an apocalyptic number.

42502142 is a deficient number, since it is larger than the sum of its proper divisors (25819090).

42502142 is a wasteful number, since it uses less digits than its factorization.

42502142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15163.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42502142 is about 6519.3666870333. The cubic root of 42502142 is about 348.9824650539.

Adding to 42502142 its reverse (24120524), we get a palindrome (66622666).

The spelling of 42502142 in words is "forty-two million, five hundred two thousand, one hundred forty-two".