20486850 has 48 divisors (see below), whose sum is σ = 51663360. Its totient is φ = 5371200.

The previous prime is 20486831. The next prime is 20486861. The reversal of 20486850 is 5868402.

It is a super-2 number, since 2×20486850² = 839422045845000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8031 + ... + 10269.

It is an arithmetic number, because the mean of its divisors is an integer number (1076320).

Almost surely, 2^20486850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20486850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25831680).

20486850 is an abundant number, since it is smaller than the sum of its proper divisors (31176510).

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

20486850 is a wasteful number, since it uses less digits than its factorization.

20486850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315 (or 2310 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 20486850 is about 4526.2401615469. The cubic root of 20486850 is about 273.6266515452.

The spelling of 20486850 in words is "twenty million, four hundred eighty-six thousand, eight hundred fifty".