20671362 has 20 divisors (see below), whose sum is σ = 46319526. Its totient is φ = 6890400.

The previous prime is 20671361. The next prime is 20671381. The reversal of 20671362 is 26317602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17065161 + 3606201 = 4131^2 + 1899^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20671361) 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 9 ways as a sum of consecutive naturals, for example, 63639 + ... + 63962.

Almost surely, 2^20671362 is an apocalyptic number.

20671362 is an abundant number, since it is smaller than the sum of its proper divisors (25648164).

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

20671362 is a wasteful number, since it uses less digits than its factorization.

20671362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127615 (or 127606 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20671362 is about 4546.5769541491. The cubic root of 20671362 is about 274.4456579698.

Adding to 20671362 its reverse (26317602), we get a palindrome (46988964).

The spelling of 20671362 in words is "twenty million, six hundred seventy-one thousand, three hundred sixty-two".