20984150 has 24 divisors (see below), whose sum is σ = 42579864. Its totient is φ = 7630400.

The previous prime is 20984147. The next prime is 20984191. The reversal of 20984150 is 5148902.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18527 + ... + 19626.

It is an arithmetic number, because the mean of its divisors is an integer number (1774161).

Almost surely, 2^20984150 is an apocalyptic number.

20984150 is an abundant number, since it is smaller than the sum of its proper divisors (21595714).

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

20984150 is a wasteful number, since it uses less digits than its factorization.

20984150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38176 (or 38171 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 20984150 is about 4580.8459917356. The cubic root of 20984150 is about 275.8229891390.

It can be divided in two parts, 20 and 984150, that multiplied together give a cube (19683000 = 270³).

The spelling of 20984150 in words is "twenty million, nine hundred eighty-four thousand, one hundred fifty".