42140235 has 8 divisors (see below), whose sum is σ = 67424400. Its totient is φ = 22474784.

The previous prime is 42140201. The next prime is 42140237. The reversal of 42140235 is 53204124.

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

It is a cyclic number.

It is not a de Polignac number, because 42140235 - 2⁷ = 42140107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42140237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404660 + ... + 1404689.

It is an arithmetic number, because the mean of its divisors is an integer number (8428050).

Almost surely, 2^42140235 is an apocalyptic number.

42140235 is a deficient number, since it is larger than the sum of its proper divisors (25284165).

42140235 is a wasteful number, since it uses less digits than its factorization.

42140235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809357.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42140235 is about 6491.5510473230. The cubic root of 42140235 is about 347.9891081939.

Adding to 42140235 its reverse (53204124), we get a palindrome (95344359).

The spelling of 42140235 in words is "forty-two million, one hundred forty thousand, two hundred thirty-five".