20104362 has 28 divisors (see below), whose sum is σ = 45217410. Its totient is φ = 6700968.

The previous prime is 20104361. The next prime is 20104367. The reversal of 20104362 is 26340102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11758041 + 8346321 = 3429^2 + 2889^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20104361) by changing a digit.

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 13 ways as a sum of consecutive naturals, for example, 5437 + ... + 8352.

Almost surely, 2^20104362 is an apocalyptic number.

20104362 is an abundant number, since it is smaller than the sum of its proper divisors (25113048).

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

20104362 is an equidigital number, since it uses as much as digits as its factorization.

20104362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13809 (or 13794 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20104362 is about 4483.7887996649. The cubic root of 20104362 is about 271.9130795652.

Adding to 20104362 its reverse (26340102), we get a palindrome (46444464).

The spelling of 20104362 in words is "twenty million, one hundred four thousand, three hundred sixty-two".