20315068 has 24 divisors (see below), whose sum is σ = 37875600. Its totient is φ = 9500928.

The previous prime is 20315063. The next prime is 20315069. The reversal of 20315068 is 86051302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11338 + ... + 13006.

It is an arithmetic number, because the mean of its divisors is an integer number (1578150).

Almost surely, 2^20315068 is an apocalyptic number.

It is an amenable number.

20315068 is a deficient number, since it is larger than the sum of its proper divisors (17560532).

20315068 is a wasteful number, since it uses less digits than its factorization.

20315068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 20315068 is about 4507.2239793469. The cubic root of 20315068 is about 272.8597185245.

The spelling of 20315068 in words is "twenty million, three hundred fifteen thousand, sixty-eight".