20330604 has 36 divisors (see below), whose sum is σ = 58733584. Its totient is φ = 5808672.

The previous prime is 20330591. The next prime is 20330647. The reversal of 20330604 is 40603302.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40087 + ... + 40590.

Almost surely, 2^20330604 is an apocalyptic number.

It is an amenable number.

20330604 is an abundant number, since it is smaller than the sum of its proper divisors (38402980).

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

20330604 is a wasteful number, since it uses less digits than its factorization.

20330604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80694 (or 80689 counting only the distinct ones).

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

The square root of 20330604 is about 4508.9471054782. The cubic root of 20330604 is about 272.9292575224.

Adding to 20330604 its reverse (40603302), we get a palindrome (60933906).

The spelling of 20330604 in words is "twenty million, three hundred thirty thousand, six hundred four".