64240211 has 8 divisors (see below), whose sum is σ = 74979840. Its totient is φ = 53891208.

The previous prime is 64240157. The next prime is 64240213. The reversal of 64240211 is 11204246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64240211 - 2⁶ = 64240147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64240213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97301 + ... + 97958.

It is an arithmetic number, because the mean of its divisors is an integer number (9372480).

Almost surely, 2^64240211 is an apocalyptic number.

64240211 is a deficient number, since it is larger than the sum of its proper divisors (10739629).

64240211 is a wasteful number, since it uses less digits than its factorization.

64240211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195313.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 64240211 is about 8014.9991266375. Note that the first 3 decimals coincide. The cubic root of 64240211 is about 400.4998147862.

Adding to 64240211 its reverse (11204246), we get a palindrome (75444457).

The spelling of 64240211 in words is "sixty-four million, two hundred forty thousand, two hundred eleven".