20436002 has 8 divisors (see below), whose sum is σ = 30998700. Its totient is φ = 10103104.

The previous prime is 20435993. The next prime is 20436019. The reversal of 20436002 is 20063402.

It can be written as a sum of positive squares in 2 ways, for example, as 20421361 + 14641 = 4519^2 + 121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 57227 + ... + 57582.

Almost surely, 2^20436002 is an apocalyptic number.

20436002 is a deficient number, since it is larger than the sum of its proper divisors (10562698).

20436002 is a wasteful number, since it uses less digits than its factorization.

20436002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114900.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20436002 is about 4520.6196477917. The cubic root of 20436002 is about 273.4000851577.

Adding to 20436002 its reverse (20063402), we get a palindrome (40499404).

The spelling of 20436002 in words is "twenty million, four hundred thirty-six thousand, two".