20144662 has 8 divisors (see below), whose sum is σ = 30238992. Its totient is φ = 10065000.

The previous prime is 20144659. The next prime is 20144671. The reversal of 20144662 is 26644102.

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, 912 + ... + 6412.

It is an arithmetic number, because the mean of its divisors is an integer number (3779874).

Almost surely, 2^20144662 is an apocalyptic number.

20144662 is a deficient number, since it is larger than the sum of its proper divisors (10094330).

20144662 is a wasteful number, since it uses less digits than its factorization.

20144662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7334.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 20144662 is about 4488.2805170800. The cubic root of 20144662 is about 272.0946451920.

Adding to 20144662 its reverse (26644102), we get a palindrome (46788764).

The spelling of 20144662 in words is "twenty million, one hundred forty-four thousand, six hundred sixty-two".