20144046 has 32 divisors (see below), whose sum is σ = 43833888. Its totient is φ = 6134400.

The previous prime is 20144039. The next prime is 20144051. The reversal of 20144046 is 64044102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6600 + ... + 9156.

It is an arithmetic number, because the mean of its divisors is an integer number (1369809).

Almost surely, 2^20144046 is an apocalyptic number.

20144046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20144046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21916944).

20144046 is an abundant number, since it is smaller than the sum of its proper divisors (23689842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20144046 is a wasteful number, since it uses less digits than its factorization.

20144046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20144046 is about 4488.2118933936. The cubic root of 20144046 is about 272.0918717193.

Adding to 20144046 its reverse (64044102), we get a palindrome (84188148).

The spelling of 20144046 in words is "twenty million, one hundred forty-four thousand, forty-six".