42720201 has 24 divisors (see below), whose sum is σ = 67451904. Its totient is φ = 25937280.

The previous prime is 42720193. The next prime is 42720217. The reversal of 42720201 is 10202724.

It is not a de Polignac number, because 42720201 - 2³ = 42720193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42720221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240 + ... + 9246.

It is an arithmetic number, because the mean of its divisors is an integer number (2810496).

Almost surely, 2^42720201 is an apocalyptic number.

It is an amenable number.

42720201 is a deficient number, since it is larger than the sum of its proper divisors (24731703).

42720201 is a wasteful number, since it uses less digits than its factorization.

42720201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9061 (or 9058 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 42720201 is about 6536.0692315795. The cubic root of 42720201 is about 349.5782702755.

Adding to 42720201 its reverse (10202724), we get a palindrome (52922925).

The spelling of 42720201 in words is "forty-two million, seven hundred twenty thousand, two hundred one".