20446012 has 12 divisors (see below), whose sum is σ = 36284976. Its totient is φ = 10078880.

The previous prime is 20446009. The next prime is 20446031. The reversal of 20446012 is 21064402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35713 + ... + 36280.

It is an arithmetic number, because the mean of its divisors is an integer number (3023748).

Almost surely, 2^20446012 is an apocalyptic number.

It is an amenable number.

20446012 is a deficient number, since it is larger than the sum of its proper divisors (15838964).

20446012 is a wasteful number, since it uses less digits than its factorization.

20446012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72068 (or 72066 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20446012 is about 4521.7266613540. The cubic root of 20446012 is about 273.4447169818. Note that the first 3 decimals are identical.

The spelling of 20446012 in words is "twenty million, four hundred forty-six thousand, twelve".