213344168 has 8 divisors (see below), whose sum is σ = 400020330. Its totient is φ = 106672080.

The previous prime is 213344167. The next prime is 213344189. The reversal of 213344168 is 861443312.

It can be written as a sum of positive squares in only one way, i.e., 207302404 + 6041764 = 14398^2 + 2458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×213344168² = 91031468039224448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213344167) 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 as a sum of consecutive naturals, namely, 13334003 + ... + 13334018.

Almost surely, 2^213344168 is an apocalyptic number.

It is an amenable number.

213344168 is a deficient number, since it is larger than the sum of its proper divisors (186676162).

213344168 is a wasteful number, since it uses less digits than its factorization.

213344168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26668027 (or 26668023 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 213344168 is about 14606.3057615538. The cubic root of 213344168 is about 597.5307482294.

The spelling of 213344168 in words is "two hundred thirteen million, three hundred forty-four thousand, one hundred sixty-eight".