20404102 has 8 divisors (see below), whose sum is σ = 31318056. Its totient is φ = 9964752.

The previous prime is 20404093. The next prime is 20404123. The reversal of 20404102 is 20140402.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118543 + ... + 118714.

It is an arithmetic number, because the mean of its divisors is an integer number (3914757).

Almost surely, 2^20404102 is an apocalyptic number.

20404102 is a deficient number, since it is larger than the sum of its proper divisors (10913954).

20404102 is a wasteful number, since it uses less digits than its factorization.

20404102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237302.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20404102 is about 4517.0899924620. The cubic root of 20404102 is about 273.2577545682.

Adding to 20404102 its reverse (20140402), we get a palindrome (40544504).

The spelling of 20404102 in words is "twenty million, four hundred four thousand, one hundred two".