20673234 has 12 divisors (see below), whose sum is σ = 44792046. Its totient is φ = 6891072.

The previous prime is 20673229. The next prime is 20673253. The reversal of 20673234 is 43237602.

It can be written as a sum of positive squares in only one way, i.e., 20115225 + 558009 = 4485^2 + 747^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20673198 and 20673207.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 574239 + ... + 574274.

Almost surely, 2^20673234 is an apocalyptic number.

20673234 is an abundant number, since it is smaller than the sum of its proper divisors (24118812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20673234 is a wasteful number, since it uses less digits than its factorization.

20673234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148521 (or 1148518 counting only the distinct ones).

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

The square root of 20673234 is about 4546.7828186532. The cubic root of 20673234 is about 274.4539423258.

The spelling of 20673234 in words is "twenty million, six hundred seventy-three thousand, two hundred thirty-four".