213333332 has 12 divisors (see below), whose sum is σ = 382439316. Its totient is φ = 104064960.

The previous prime is 213333331. The next prime is 213333343. The reversal of 213333332 is 233333312.

It can be written as a sum of positive squares in 2 ways, for example, as 18284176 + 195049156 = 4276^2 + 13966^2 .

It is a super-2 number, since 2×213333332² = 91022221084444448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 213333298 and 213333307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213333331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650243 + ... + 650570.

It is an arithmetic number, because the mean of its divisors is an integer number (31869943).

Almost surely, 2^213333332 is an apocalyptic number.

It is an amenable number.

213333332 is a deficient number, since it is larger than the sum of its proper divisors (169105984).

213333332 is a wasteful number, since it uses less digits than its factorization.

213333332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300858 (or 1300856 counting only the distinct ones).

The product of its digits is 2916, while the sum is 23.

The square root of 213333332 is about 14605.9348211609. The cubic root of 213333332 is about 597.5206316295.

Adding to 213333332 its reverse (233333312), we get a palindrome (446666644).

The spelling of 213333332 in words is "two hundred thirteen million, three hundred thirty-three thousand, three hundred thirty-two".