42140307 has 12 divisors (see below), whose sum is σ = 61759880. Its totient is φ = 25539360.

The previous prime is 42140303. The next prime is 42140321. The reversal of 42140307 is 70304124.

It is not a de Polignac number, because 42140307 - 2² = 42140303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42140303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57682 + ... + 58407.

Almost surely, 2^42140307 is an apocalyptic number.

42140307 is a deficient number, since it is larger than the sum of its proper divisors (19619573).

42140307 is a wasteful number, since it uses less digits than its factorization.

42140307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116114 (or 116103 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 42140307 is about 6491.5565929906. The cubic root of 42140307 is about 347.9893063830.

The spelling of 42140307 in words is "forty-two million, one hundred forty thousand, three hundred seven".