20348718 has 32 divisors (see below), whose sum is σ = 44854656. Its totient is φ = 6114528.

The previous prime is 20348717. The next prime is 20348719. The reversal of 20348718 is 81784302.

It is an interprime number because it is at equal distance from previous prime (20348717) and next prime (20348719).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20348717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321 + ... + 6387.

It is an arithmetic number, because the mean of its divisors is an integer number (1401708).

Almost surely, 2^20348718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20348718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22427328).

20348718 is an abundant number, since it is smaller than the sum of its proper divisors (24505938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20348718 is a wasteful number, since it uses less digits than its factorization.

20348718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6128.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 20348718 is about 4510.9553311909. The cubic root of 20348718 is about 273.0102909081.

The spelling of 20348718 in words is "twenty million, three hundred forty-eight thousand, seven hundred eighteen".