42340142 has 8 divisors (see below), whose sum is σ = 68395656. Its totient is φ = 19541592.

The previous prime is 42340139. The next prime is 42340157. The reversal of 42340142 is 24104324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814208 + ... + 814259.

It is an arithmetic number, because the mean of its divisors is an integer number (8549457).

Almost surely, 2^42340142 is an apocalyptic number.

42340142 is a deficient number, since it is larger than the sum of its proper divisors (26055514).

42340142 is a wasteful number, since it uses less digits than its factorization.

42340142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628482.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42340142 is about 6506.9303054513. The cubic root of 42340142 is about 348.5385098518.

Adding to 42340142 its reverse (24104324), we get a palindrome (66444466).

The spelling of 42340142 in words is "forty-two million, three hundred forty thousand, one hundred forty-two".