20674486 has 32 divisors (see below), whose sum is σ = 36926208. Its totient is φ = 8497440.

The previous prime is 20674481. The next prime is 20674513. The reversal of 20674486 is 68447602.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674481) 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 15 ways as a sum of consecutive naturals, for example, 36441 + ... + 37003.

It is an arithmetic number, because the mean of its divisors is an integer number (1153944).

Almost surely, 2^20674486 is an apocalyptic number.

20674486 is a deficient number, since it is larger than the sum of its proper divisors (16251722).

20674486 is a wasteful number, since it uses less digits than its factorization.

20674486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 20674486 is about 4546.9204963360. The cubic root of 20674486 is about 274.4594826523.

The spelling of 20674486 in words is "twenty million, six hundred seventy-four thousand, four hundred eighty-six".