213304308 has 24 divisors (see below), whose sum is σ = 568811712. Its totient is φ = 60944064.

The previous prime is 213304307. The next prime is 213304361. The reversal of 213304308 is 803403312.

It is a super-2 number, since 2×213304308² = 90997455622717728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213304307) 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, 1269585 + ... + 1269752.

It is an arithmetic number, because the mean of its divisors is an integer number (23700488).

Almost surely, 2^213304308 is an apocalyptic number.

213304308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213304308 is an abundant number, since it is smaller than the sum of its proper divisors (355507404).

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

213304308 is a wasteful number, since it uses less digits than its factorization.

213304308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539351 (or 2539349 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 213304308 is about 14604.9412186424. The cubic root of 213304308 is about 597.4935328397.

The spelling of 213304308 in words is "two hundred thirteen million, three hundred four thousand, three hundred eight".