20854230 has 16 divisors (see below), whose sum is σ = 50050224. Its totient is φ = 5561120.

The previous prime is 20854217. The next prime is 20854231. The reversal of 20854230 is 3245802.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20854230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20854231) 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, 347541 + ... + 347600.

It is an arithmetic number, because the mean of its divisors is an integer number (3128139).

Almost surely, 2^20854230 is an apocalyptic number.

20854230 is an abundant number, since it is smaller than the sum of its proper divisors (29195994).

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

20854230 is a wasteful number, since it uses less digits than its factorization.

20854230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695151.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20854230 is about 4566.6431872876. The cubic root of 20854230 is about 275.2525723629.

The spelling of 20854230 in words is "twenty million, eight hundred fifty-four thousand, two hundred thirty".