20676466 has 16 divisors (see below), whose sum is σ = 31912704. Its totient is φ = 10042864.

The previous prime is 20676463. The next prime is 20676493. The reversal of 20676466 is 66467602.

It is not an unprimeable number, because it can be changed into a prime (20676463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10431 + ... + 12253.

It is an arithmetic number, because the mean of its divisors is an integer number (1994544).

Almost surely, 2^20676466 is an apocalyptic number.

20676466 is a deficient number, since it is larger than the sum of its proper divisors (11236238).

20676466 is a wasteful number, since it uses less digits than its factorization.

20676466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 20676466 is about 4547.1382209033. The cubic root of 20676466 is about 274.4682440540.

The spelling of 20676466 in words is "twenty million, six hundred seventy-six thousand, four hundred sixty-six".