20064215 has 8 divisors (see below), whose sum is σ = 24222240. Its totient is φ = 15954592.

The previous prime is 20064203. The next prime is 20064217. The reversal of 20064215 is 51246002.

It is a happy number.

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 20064215 - 2¹⁰ = 20063191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20064217) 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, 11180 + ... + 12849.

It is an arithmetic number, because the mean of its divisors is an integer number (3027780).

Almost surely, 2^20064215 is an apocalyptic number.

20064215 is a deficient number, since it is larger than the sum of its proper divisors (4158025).

20064215 is a wasteful number, since it uses less digits than its factorization.

20064215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24201.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20064215 is about 4479.3096566324. The cubic root of 20064215 is about 271.7319618394.

The spelling of 20064215 in words is "twenty million, sixty-four thousand, two hundred fifteen".