20143366 has 8 divisors (see below), whose sum is σ = 31189824. Its totient is φ = 9746760.

The previous prime is 20143337. The next prime is 20143379. The reversal of 20143366 is 66334102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20143366.

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, 162385 + ... + 162508.

It is an arithmetic number, because the mean of its divisors is an integer number (3898728).

Almost surely, 2^20143366 is an apocalyptic number.

20143366 is a deficient number, since it is larger than the sum of its proper divisors (11046458).

20143366 is a wasteful number, since it uses less digits than its factorization.

20143366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324926.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20143366 is about 4488.1361387552. The cubic root of 20143366 is about 272.0888100280.

Adding to 20143366 its reverse (66334102), we get a palindrome (86477468).

The spelling of 20143366 in words is "twenty million, one hundred forty-three thousand, three hundred sixty-six".