20683230 has 16 divisors (see below), whose sum is σ = 49639824. Its totient is φ = 5515520.

The previous prime is 20683211. The next prime is 20683241. The reversal of 20683230 is 3238602.

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 20683230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344691 + ... + 344750.

It is an arithmetic number, because the mean of its divisors is an integer number (3102489).

Almost surely, 2^20683230 is an apocalyptic number.

20683230 is an abundant number, since it is smaller than the sum of its proper divisors (28956594).

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

20683230 is a wasteful number, since it uses less digits than its factorization.

20683230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689451.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20683230 is about 4547.8819245886. The cubic root of 20683230 is about 274.4981701996.

It can be divided in two parts, 206 and 83230, that added together give a triangular number (83436 = T₄₀₈).

The spelling of 20683230 in words is "twenty million, six hundred eighty-three thousand, two hundred thirty".