20404014 has 32 divisors (see below), whose sum is σ = 42445824. Its totient is φ = 6531840.

The previous prime is 20404009. The next prime is 20404039. The reversal of 20404014 is 41040402.

It is a super-4 number, since 4×20404014⁴ (a number of 30 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20403984 and 20404002.

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, 29982 + ... + 30654.

It is an arithmetic number, because the mean of its divisors is an integer number (1326432).

Almost surely, 2^20404014 is an apocalyptic number.

20404014 is an abundant number, since it is smaller than the sum of its proper divisors (22041810).

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

20404014 is a wasteful number, since it uses less digits than its factorization.

20404014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 20404014 is about 4517.0802516670. The cubic root of 20404014 is about 273.2573617269.

Adding to 20404014 its reverse (41040402), we get a palindrome (61444416).

The spelling of 20404014 in words is "twenty million, four hundred four thousand, fourteen".