42345507 has 16 divisors (see below), whose sum is σ = 59447808. Its totient is φ = 26759040.

The previous prime is 42345491. The next prime is 42345587. The reversal of 42345507 is 70554324.

It is not a de Polignac number, because 42345507 - 2⁴ = 42345491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42345587) 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, 5082 + ... + 10512.

It is an arithmetic number, because the mean of its divisors is an integer number (3715488).

Almost surely, 2^42345507 is an apocalyptic number.

42345507 is a deficient number, since it is larger than the sum of its proper divisors (17102301).

42345507 is a wasteful number, since it uses less digits than its factorization.

42345507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5570.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 42345507 is about 6507.3425451562. The cubic root of 42345507 is about 348.5532305561.

The spelling of 42345507 in words is "forty-two million, three hundred forty-five thousand, five hundred seven".