42207507 has 16 divisors (see below), whose sum is σ = 65249280. Its totient is φ = 26914536.

The previous prime is 42207497. The next prime is 42207509. The reversal of 42207507 is 70570224.

It is not a de Polignac number, because 42207507 - 2¹¹ = 42205459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42207509) 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, 33363 + ... + 34604.

It is an arithmetic number, because the mean of its divisors is an integer number (4078080).

Almost surely, 2^42207507 is an apocalyptic number.

42207507 is a deficient number, since it is larger than the sum of its proper divisors (23041773).

42207507 is a wasteful number, since it uses less digits than its factorization.

42207507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67999 (or 67993 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 42207507 is about 6496.7304854057. The cubic root of 42207507 is about 348.1741845012.

The spelling of 42207507 in words is "forty-two million, two hundred seven thousand, five hundred seven".