20041718 has 4 divisors (see below), whose sum is σ = 30062580. Its totient is φ = 10020858.

The previous prime is 20041711. The next prime is 20041729. The reversal of 20041718 is 81714002.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20041693 and 20041702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010428 + ... + 5010431.

It is an arithmetic number, because the mean of its divisors is an integer number (7515645).

Almost surely, 2^20041718 is an apocalyptic number.

20041718 is a deficient number, since it is larger than the sum of its proper divisors (10020862).

20041718 is a wasteful number, since it uses less digits than its factorization.

20041718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10020861.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 20041718 is about 4476.7977394562. The cubic root of 20041718 is about 271.6303640419.

The spelling of 20041718 in words is "twenty million, forty-one thousand, seven hundred eighteen".