20846250 has 120 divisors (see below), whose sum is σ = 60308820. Its totient is φ = 5184000.

The previous prime is 20846227. The next prime is 20846261. The reversal of 20846250 is 5264802.

It can be written as a sum of positive squares in 10 ways, for example, as 25281 + 20820969 = 159^2 + 4563^2 .

It is a super-2 number, since 2×20846250² = 869132278125000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 191196 + ... + 191304.

Almost surely, 2^20846250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20846250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30154410).

20846250 is an abundant number, since it is smaller than the sum of its proper divisors (39462570).

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

20846250 is a wasteful number, since it uses less digits than its factorization.

20846250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20846250 is about 4565.7693765673. The cubic root of 20846250 is about 275.2174588510.

The spelling of 20846250 in words is "twenty million, eight hundred forty-six thousand, two hundred fifty".