210324140 has 48 divisors (see below), whose sum is σ = 484662528. Its totient is φ = 76187904.

The previous prime is 210324139. The next prime is 210324143. The reversal of 210324140 is 41423012.

It is not an unprimeable number, because it can be changed into a prime (210324143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6149 + ... + 21411.

It is an arithmetic number, because the mean of its divisors is an integer number (10097136).

Almost surely, 2^210324140 is an apocalyptic number.

210324140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210324140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242331264).

210324140 is an abundant number, since it is smaller than the sum of its proper divisors (274338388).

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

210324140 is a wasteful number, since it uses less digits than its factorization.

210324140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15338 (or 15336 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 210324140 is about 14502.5563263860. The cubic root of 210324140 is about 594.6978575664.

Adding to 210324140 its reverse (41423012), we get a palindrome (251747152).

The spelling of 210324140 in words is "two hundred ten million, three hundred twenty-four thousand, one hundred forty".