20466212 has 12 divisors (see below), whose sum is σ = 38571036. Its totient is φ = 9445920.

The previous prime is 20466179. The next prime is 20466227. The reversal of 20466212 is 21266402.

It can be written as a sum of positive squares in 2 ways, for example, as 8797156 + 11669056 = 2966^2 + 3416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196739 + ... + 196842.

It is an arithmetic number, because the mean of its divisors is an integer number (3214253).

Almost surely, 2^20466212 is an apocalyptic number.

It is an amenable number.

20466212 is a deficient number, since it is larger than the sum of its proper divisors (18104824).

20466212 is a wasteful number, since it uses less digits than its factorization.

20466212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393598 (or 393596 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20466212 is about 4523.9597699361. The cubic root of 20466212 is about 273.5347388605.

The spelling of 20466212 in words is "twenty million, four hundred sixty-six thousand, two hundred twelve".