20440162 has 8 divisors (see below), whose sum is σ = 32274000. Its totient is φ = 9682164.

The previous prime is 20440153. The next prime is 20440163. The reversal of 20440162 is 26104402.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20440163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268912 + ... + 268987.

It is an arithmetic number, because the mean of its divisors is an integer number (4034250).

Almost surely, 2^20440162 is an apocalyptic number.

20440162 is a deficient number, since it is larger than the sum of its proper divisors (11833838).

20440162 is a wasteful number, since it uses less digits than its factorization.

20440162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537920.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20440162 is about 4521.0797382926. The cubic root of 20440162 is about 273.4186352177.

Adding to 20440162 its reverse (26104402), we get a palindrome (46544564).

It can be divided in two parts, 20440 and 162, that added together give a palindrome (20602).

The spelling of 20440162 in words is "twenty million, four hundred forty thousand, one hundred sixty-two".