20674912 has 24 divisors (see below), whose sum is σ = 42109200. Its totient is φ = 9980544.

The previous prime is 20674867. The next prime is 20674919. The reversal of 20674912 is 21947602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10212 + ... + 12067.

It is an arithmetic number, because the mean of its divisors is an integer number (1754550).

Almost surely, 2^20674912 is an apocalyptic number.

It is an amenable number.

20674912 is an abundant number, since it is smaller than the sum of its proper divisors (21434288).

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

20674912 is a wasteful number, since it uses less digits than its factorization.

20674912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22318 (or 22310 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20674912 is about 4546.9673409867. The cubic root of 20674912 is about 274.4613677284.

The spelling of 20674912 in words is "twenty million, six hundred seventy-four thousand, nine hundred twelve".