213333234 has 32 divisors (see below), whose sum is σ = 455583744. Its totient is φ = 66435600.

The previous prime is 213333223. The next prime is 213333271. The reversal of 213333234 is 432333312.

It is a happy number.

It is a super-2 number, since 2×213333234² = 91022137457797512, which contains 22 as substring.

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, 12042 + ... + 23909.

It is an arithmetic number, because the mean of its divisors is an integer number (14236992).

Almost surely, 2^213333234 is an apocalyptic number.

213333234 is an abundant number, since it is smaller than the sum of its proper divisors (242250510).

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

213333234 is a wasteful number, since it uses less digits than its factorization.

213333234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36022.

The product of its digits is 3888, while the sum is 24.

The square root of 213333234 is about 14605.9314663598. The cubic root of 213333234 is about 597.5205401341.

Adding to 213333234 its reverse (432333312), we get a palindrome (645666546).

The spelling of 213333234 in words is "two hundred thirteen million, three hundred thirty-three thousand, two hundred thirty-four".