20343718 has 8 divisors (see below), whose sum is σ = 32121720. Its totient is φ = 9636480.

The previous prime is 20343689. The next prime is 20343727. The reversal of 20343718 is 81734302.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267643 + ... + 267718.

It is an arithmetic number, because the mean of its divisors is an integer number (4015215).

Almost surely, 2^20343718 is an apocalyptic number.

20343718 is a deficient number, since it is larger than the sum of its proper divisors (11778002).

20343718 is a wasteful number, since it uses less digits than its factorization.

20343718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535382.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20343718 is about 4510.4010908122. The cubic root of 20343718 is about 272.9879281025.

The spelling of 20343718 in words is "twenty million, three hundred forty-three thousand, seven hundred eighteen".