210513340 has 24 divisors (see below), whose sum is σ = 442517040. Its totient is φ = 84121728.

The previous prime is 210513323. The next prime is 210513341. The reversal of 210513340 is 43315012.

210513340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210513341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17919 + ... + 27241.

It is an arithmetic number, because the mean of its divisors is an integer number (18438210).

Almost surely, 2^210513340 is an apocalyptic number.

210513340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210513340 is an abundant number, since it is smaller than the sum of its proper divisors (232003700).

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

210513340 is a wasteful number, since it uses less digits than its factorization.

210513340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10461 (or 10459 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 210513340 is about 14509.0778480233. The cubic root of 210513340 is about 594.8761270268.

Adding to 210513340 its reverse (43315012), we get a palindrome (253828352).

The spelling of 210513340 in words is "two hundred ten million, five hundred thirteen thousand, three hundred forty".