20948318 has 16 divisors (see below), whose sum is σ = 33359040. Its totient is φ = 9831936.

The previous prime is 20948261. The next prime is 20948321. The reversal of 20948318 is 81384902.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19643 + ... + 20681.

It is an arithmetic number, because the mean of its divisors is an integer number (2084940).

Almost surely, 2^20948318 is an apocalyptic number.

20948318 is a deficient number, since it is larger than the sum of its proper divisors (12410722).

20948318 is a wasteful number, since it uses less digits than its factorization.

20948318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 20948318 is about 4576.9332527359. The cubic root of 20948318 is about 275.6659035899.

The spelling of 20948318 in words is "twenty million, nine hundred forty-eight thousand, three hundred eighteen".