20234250 has 144 divisors (see below), whose sum is σ = 60560136. Its totient is φ = 4857600.

The previous prime is 20234237. The next prime is 20234251. The reversal of 20234250 is 5243202.

It can be written as a sum of positive squares in 4 ways, for example, as 8803089 + 11431161 = 2967^2 + 3381^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20234251) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 879739 + ... + 879761.

Almost surely, 2^20234250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20234250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30280068).

20234250 is an abundant number, since it is smaller than the sum of its proper divisors (40325886).

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

20234250 is a wasteful number, since it uses less digits than its factorization.

20234250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20234250 is about 4498.2496595898. The cubic root of 20234250 is about 272.4974047953.

Adding to 20234250 its reverse (5243202), we get a palindrome (25477452).

It can be divided in two parts, 20 and 234250, that added together give a triangular number (234270 = T₆₈₄).

The spelling of 20234250 in words is "twenty million, two hundred thirty-four thousand, two hundred fifty".