20326250 has 80 divisors (see below), whose sum is σ = 45885312. Its totient is φ = 6600000.

The previous prime is 20326249. The next prime is 20326277. The reversal of 20326250 is 5262302.

It is a happy number.

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 39 ways as a sum of consecutive naturals, for example, 201200 + ... + 201300.

Almost surely, 2^20326250 is an apocalyptic number.

20326250 is an abundant number, since it is smaller than the sum of its proper divisors (25559062).

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

20326250 is a wasteful number, since it uses less digits than its factorization.

20326250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20326250 is about 4508.4642618080. The cubic root of 20326250 is about 272.9097726311.

Adding to 20326250 its reverse (5262302), we get a palindrome (25588552).

The spelling of 20326250 in words is "twenty million, three hundred twenty-six thousand, two hundred fifty".