20040718 has 8 divisors (see below), whose sum is σ = 30794400. Its totient is φ = 9775920.

The previous prime is 20040703. The next prime is 20040733. The reversal of 20040718 is 81704002.

It is an interprime number because it is at equal distance from previous prime (20040703) and next prime (20040733).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122118 + ... + 122281.

It is an arithmetic number, because the mean of its divisors is an integer number (3849300).

Almost surely, 2^20040718 is an apocalyptic number.

20040718 is a deficient number, since it is larger than the sum of its proper divisors (10753682).

20040718 is a wasteful number, since it uses less digits than its factorization.

20040718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244442.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 20040718 is about 4476.6860510873. The cubic root of 20040718 is about 271.6258462176.

The spelling of 20040718 in words is "twenty million, forty thousand, seven hundred eighteen".