213343340 has 48 divisors (see below), whose sum is σ = 522934272. Its totient is φ = 71587776.

The previous prime is 213343337. The next prime is 213343393. The reversal of 213343340 is 43343312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9632 + ... + 22791.

It is an arithmetic number, because the mean of its divisors is an integer number (10894464).

Almost surely, 2^213343340 is an apocalyptic number.

213343340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213343340 is an abundant number, since it is smaller than the sum of its proper divisors (309590932).

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

213343340 is a wasteful number, since it uses less digits than its factorization.

213343340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32486 (or 32484 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 213343340 is about 14606.2774176037. The cubic root of 213343340 is about 597.5299752123.

Adding to 213343340 its reverse (43343312), we get a palindrome (256686652).

The spelling of 213343340 in words is "two hundred thirteen million, three hundred forty-three thousand, three hundred forty".