213310340 has 24 divisors (see below), whose sum is σ = 471528960. Its totient is φ = 80833248.

The previous prime is 213310277. The next prime is 213310367. The reversal of 213310340 is 43013312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280292 + ... + 281051.

It is an arithmetic number, because the mean of its divisors is an integer number (19647040).

Almost surely, 2^213310340 is an apocalyptic number.

213310340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213310340 is an abundant number, since it is smaller than the sum of its proper divisors (258218620).

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

213310340 is a wasteful number, since it uses less digits than its factorization.

213310340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561371 (or 561369 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213310340 is about 14605.1477226353. The cubic root of 213310340 is about 597.4991649294.

Adding to 213310340 its reverse (43013312), we get a palindrome (256323652).

The spelling of 213310340 in words is "two hundred thirteen million, three hundred ten thousand, three hundred forty".