42620201 has 4 divisors (see below), whose sum is σ = 45898692. Its totient is φ = 39341712.

The previous prime is 42620191. The next prime is 42620213. The reversal of 42620201 is 10202624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14784025 + 27836176 = 3845^2 + 5276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42620201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42620201.

It is not an unprimeable number, because it can be changed into a prime (42610201) 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 3 ways as a sum of consecutive naturals, for example, 1639226 + ... + 1639251.

It is an arithmetic number, because the mean of its divisors is an integer number (11474673).

Almost surely, 2^42620201 is an apocalyptic number.

It is an amenable number.

42620201 is a deficient number, since it is larger than the sum of its proper divisors (3278491).

42620201 is a wasteful number, since it uses less digits than its factorization.

42620201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278490.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 42620201 is about 6528.4148918401. The cubic root of 42620201 is about 349.3052913856.

Adding to 42620201 its reverse (10202624), we get a palindrome (52822825).

The spelling of 42620201 in words is "forty-two million, six hundred twenty thousand, two hundred one".