20396884 has 24 divisors (see below), whose sum is σ = 37227008. Its totient is φ = 9767520.

The previous prime is 20396867. The next prime is 20396933. The reversal of 20396884 is 48869302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11974 + ... + 13570.

Almost surely, 2^20396884 is an apocalyptic number.

It is an amenable number.

20396884 is a deficient number, since it is larger than the sum of its proper divisors (16830124).

20396884 is a wasteful number, since it uses less digits than its factorization.

20396884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735 (or 1733 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 20396884 is about 4516.2909560833. The cubic root of 20396884 is about 273.2255289060.

The spelling of 20396884 in words is "twenty million, three hundred ninety-six thousand, eight hundred eighty-four".