20348918 has 8 divisors (see below), whose sum is σ = 30678912. Its totient is φ = 10122616.

The previous prime is 20348903. The next prime is 20348921. The reversal of 20348918 is 81984302.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 25430 + ... + 26217.

It is an arithmetic number, because the mean of its divisors is an integer number (3834864).

Almost surely, 2^20348918 is an apocalyptic number.

20348918 is a deficient number, since it is larger than the sum of its proper divisors (10329994).

20348918 is a wasteful number, since it uses less digits than its factorization.

20348918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51846.

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

The square root of 20348918 is about 4510.9774993897. The cubic root of 20348918 is about 273.0111853441.

The spelling of 20348918 in words is "twenty million, three hundred forty-eight thousand, nine hundred eighteen".