20841118 has 4 divisors (see below), whose sum is σ = 31261680. Its totient is φ = 10420558.

The previous prime is 20841113. The next prime is 20841179. The reversal of 20841118 is 81114802.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20841092 and 20841101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20841113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210278 + ... + 5210281.

It is an arithmetic number, because the mean of its divisors is an integer number (7815420).

Almost surely, 2^20841118 is an apocalyptic number.

20841118 is a deficient number, since it is larger than the sum of its proper divisors (10420562).

20841118 is a wasteful number, since it uses less digits than its factorization.

20841118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10420561.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 20841118 is about 4565.2073337363. The cubic root of 20841118 is about 275.1948723440.

The spelling of 20841118 in words is "twenty million, eight hundred forty-one thousand, one hundred eighteen".