20194250 has 16 divisors (see below), whose sum is σ = 37804104. Its totient is φ = 8077600.

The previous prime is 20194241. The next prime is 20194259. The reversal of 20194250 is 5249102.

It is an interprime number because it is at equal distance from previous prime (20194241) and next prime (20194259).

It can be written as a sum of positive squares in 4 ways, for example, as 12909649 + 7284601 = 3593^2 + 2699^2 .

It is not an unprimeable number, because it can be changed into a prime (20194259) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 40139 + ... + 40638.

Almost surely, 2^20194250 is an apocalyptic number.

20194250 is a deficient number, since it is larger than the sum of its proper divisors (17609854).

20194250 is an equidigital number, since it uses as much as digits as its factorization.

20194250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80794 (or 80784 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20194250 is about 4493.8012862164. The cubic root of 20194250 is about 272.3177245244.

The spelling of 20194250 in words is "twenty million, one hundred ninety-four thousand, two hundred fifty".