42008506 has 32 divisors (see below), whose sum is σ = 69442560. Its totient is φ = 18987696.

The previous prime is 42008497. The next prime is 42008537. The reversal of 42008506 is 60580024.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76525 + ... + 77071.

It is an arithmetic number, because the mean of its divisors is an integer number (2170080).

Almost surely, 2^42008506 is an apocalyptic number.

42008506 is a deficient number, since it is larger than the sum of its proper divisors (27434054).

42008506 is a wasteful number, since it uses less digits than its factorization.

42008506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42008506 is about 6481.3969173319. The cubic root of 42008506 is about 347.6261288433.

The spelling of 42008506 in words is "forty-two million, eight thousand, five hundred six".