20674004 has 24 divisors (see below), whose sum is σ = 39916968. Its totient is φ = 9308160.

The previous prime is 20673997. The next prime is 20674007. The reversal of 20674004 is 40047602.

It can be written as a sum of positive squares in 4 ways, for example, as 1768900 + 18905104 = 1330^2 + 4348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2717 + ... + 6980.

It is an arithmetic number, because the mean of its divisors is an integer number (1663207).

Almost surely, 2^20674004 is an apocalyptic number.

It is an amenable number.

20674004 is a deficient number, since it is larger than the sum of its proper divisors (19242964).

20674004 is a wasteful number, since it uses less digits than its factorization.

20674004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9755 (or 9753 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20674004 is about 4546.8674931210. The cubic root of 20674004 is about 274.4573497416.

The spelling of 20674004 in words is "twenty million, six hundred seventy-four thousand, four".