20336090 has 8 divisors (see below), whose sum is σ = 36604980. Its totient is φ = 8134432.

The previous prime is 20336089. The next prime is 20336149. The reversal of 20336090 is 9063302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19439281 + 896809 = 4409^2 + 947^2 .

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, 1016795 + ... + 1016814.

Almost surely, 2^20336090 is an apocalyptic number.

20336090 is a deficient number, since it is larger than the sum of its proper divisors (16268890).

20336090 is a wasteful number, since it uses less digits than its factorization.

20336090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033616.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 20336090 is about 4509.5554104590. Note that the first 3 decimals coincide. The cubic root of 20336090 is about 272.9538043461.

Adding to 20336090 its reverse (9063302), we get a palindrome (29399392).

The spelling of 20336090 in words is "twenty million, three hundred thirty-six thousand, ninety".