42075242 has 32 divisors (see below), whose sum is σ = 71470080. Its totient is φ = 18411120.

The previous prime is 42075217. The next prime is 42075247. The reversal of 42075242 is 24257024.

It is not an unprimeable number, because it can be changed into a prime (42075247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74453 + ... + 75015.

It is an arithmetic number, because the mean of its divisors is an integer number (2233440).

Almost surely, 2^42075242 is an apocalyptic number.

42075242 is a deficient number, since it is larger than the sum of its proper divisors (29394838).

42075242 is a wasteful number, since it uses less digits than its factorization.

42075242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 42075242 is about 6486.5431471624. The cubic root of 42075242 is about 347.8101146230.

It can be divided in two parts, 4207 and 5242, that added together give a palindrome (9449).

The spelling of 42075242 in words is "forty-two million, seventy-five thousand, two hundred forty-two".