42587242 has 8 divisors (see below), whose sum is σ = 65941632. Its totient is φ = 20606700.

The previous prime is 42587239. The next prime is 42587267. The reversal of 42587242 is 24278524.

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

It is a junction number, because it is equal to n+sod(n) for n = 42587198 and 42587207.

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, 343384 + ... + 343507.

It is an arithmetic number, because the mean of its divisors is an integer number (8242704).

Almost surely, 2^42587242 is an apocalyptic number.

42587242 is a deficient number, since it is larger than the sum of its proper divisors (23354390).

42587242 is a wasteful number, since it uses less digits than its factorization.

42587242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686924.

The product of its digits is 35840, while the sum is 34.

The square root of 42587242 is about 6525.8901308557. The cubic root of 42587242 is about 349.2152267232.

The spelling of 42587242 in words is "forty-two million, five hundred eighty-seven thousand, two hundred forty-two".