20266315 has 8 divisors (see below), whose sum is σ = 24399648. Its totient is φ = 16159680.

The previous prime is 20266313. The next prime is 20266327. The reversal of 20266315 is 51366202.

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

It is not a de Polignac number, because 20266315 - 2¹ = 20266313 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 20266315.

It is not an unprimeable number, because it can be changed into a prime (20266313) 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, 4962 + ... + 8071.

It is an arithmetic number, because the mean of its divisors is an integer number (3049956).

Almost surely, 2^20266315 is an apocalyptic number.

20266315 is a deficient number, since it is larger than the sum of its proper divisors (4133333).

20266315 is a wasteful number, since it uses less digits than its factorization.

20266315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13349.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20266315 is about 4501.8124127955. The cubic root of 20266315 is about 272.6412700711.

The spelling of 20266315 in words is "twenty million, two hundred sixty-six thousand, three hundred fifteen".