213140460 has 96 divisors (see below), whose sum is σ = 645765120. Its totient is φ = 52215552.

The previous prime is 213140449. The next prime is 213140479. The reversal of 213140460 is 64041312.

213140460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204621 + ... + 205659.

It is an arithmetic number, because the mean of its divisors is an integer number (6726720).

Almost surely, 2^213140460 is an apocalyptic number.

213140460 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 213140460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322882560).

213140460 is an abundant number, since it is smaller than the sum of its proper divisors (432624660).

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

213140460 is a wasteful number, since it uses less digits than its factorization.

213140460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 213140460 is about 14599.3308065815. The cubic root of 213140460 is about 597.3405070233.

Adding to 213140460 its reverse (64041312), we get a palindrome (277181772).

The spelling of 213140460 in words is "two hundred thirteen million, one hundred forty thousand, four hundred sixty".