20336004 has 72 divisors (see below), whose sum is σ = 58298240. Its totient is φ = 5925312.

The previous prime is 20335999. The next prime is 20336027. The reversal of 20336004 is 40063302.

20336004 is nontrivially palindromic in base 7.

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

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7749 + ... + 10035.

Almost surely, 2^20336004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20336004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29149120).

20336004 is an abundant number, since it is smaller than the sum of its proper divisors (37962236).

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

20336004 is a wasteful number, since it uses less digits than its factorization.

20336004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329 (or 2324 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20336004 is about 4509.5458751409. The cubic root of 20336004 is about 272.9534195776.

Adding to 20336004 its reverse (40063302), we get a palindrome (60399306).

The spelling of 20336004 in words is "twenty million, three hundred thirty-six thousand, four".