20674233 has 6 divisors (see below), whose sum is σ = 29862794. Its totient is φ = 13782816.

The previous prime is 20674207. The next prime is 20674237. The reversal of 20674233 is 33247602.

It can be written as a sum of positive squares in only one way, i.e., 18249984 + 2424249 = 4272^2 + 1557^2 .

It is not a de Polignac number, because 20674233 - 2⁵ = 20674201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20674197 and 20674206.

It is not an unprimeable number, because it can be changed into a prime (20674237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1148560 + ... + 1148577.

Almost surely, 2^20674233 is an apocalyptic number.

It is an amenable number.

20674233 is a deficient number, since it is larger than the sum of its proper divisors (9188561).

20674233 is a wasteful number, since it uses less digits than its factorization.

20674233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297143 (or 2297140 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 20674233 is about 4546.8926752234. The cubic root of 20674233 is about 274.4583630996.

The spelling of 20674233 in words is "twenty million, six hundred seventy-four thousand, two hundred thirty-three".