42665201 has 8 divisors (see below), whose sum is σ = 43684800. Its totient is φ = 41655600.

The previous prime is 42665179. The next prime is 42665209. The reversal of 42665201 is 10256624.

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 42665201 - 2⁶ = 42665137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42665209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6515 + ... + 11303.

It is an arithmetic number, because the mean of its divisors is an integer number (5460600).

Almost surely, 2^42665201 is an apocalyptic number.

It is an amenable number.

42665201 is a deficient number, since it is larger than the sum of its proper divisors (1019599).

42665201 is a wasteful number, since it uses less digits than its factorization.

42665201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 42665201 is about 6531.8604547250. The cubic root of 42665201 is about 349.4281846682.

The spelling of 42665201 in words is "forty-two million, six hundred sixty-five thousand, two hundred one".