20033964 has 36 divisors (see below), whose sum is σ = 50808576. Its totient is φ = 6655968.

The previous prime is 20033933. The next prime is 20034011. The reversal of 20033964 is 46933002.

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

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, 13062 + ... + 14514.

Almost surely, 2^20033964 is an apocalyptic number.

It is an amenable number.

20033964 is an abundant number, since it is smaller than the sum of its proper divisors (30774612).

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

20033964 is a wasteful number, since it uses less digits than its factorization.

20033964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 20033964 is about 4475.9316348666. The cubic root of 20033964 is about 271.5953288962.

Adding to 20033964 its reverse (46933002), we get a palindrome (66966966).

The spelling of 20033964 in words is "twenty million, thirty-three thousand, nine hundred sixty-four".