213343700 has 36 divisors (see below), whose sum is σ = 464358300. Its totient is φ = 85079040.

The previous prime is 213343681. The next prime is 213343703. The reversal of 213343700 is 7343312.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8464 + 213335236 = 92^2 + 14606^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213343703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31844 + ... + 37956.

Almost surely, 2^213343700 is an apocalyptic number.

213343700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213343700 is an abundant number, since it is smaller than the sum of its proper divisors (251014600).

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

213343700 is a wasteful number, since it uses less digits than its factorization.

213343700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476 (or 6469 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 213343700 is about 14606.2897410670. The cubic root of 213343700 is about 597.5303113069.

The spelling of 213343700 in words is "two hundred thirteen million, three hundred forty-three thousand, seven hundred".