213033432 has 16 divisors (see below), whose sum is σ = 532583640. Its totient is φ = 71011136.

The previous prime is 213033349. The next prime is 213033467. The reversal of 213033432 is 234330312.

It is a junction number, because it is equal to n+sod(n) for n = 213033399 and 213033408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4438173 + ... + 4438220.

Almost surely, 2^213033432 is an apocalyptic number.

It is an amenable number.

213033432 is an abundant number, since it is smaller than the sum of its proper divisors (319550208).

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

213033432 is a wasteful number, since it uses less digits than its factorization.

213033432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8876402 (or 8876398 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 213033432 is about 14595.6648358340. The cubic root of 213033432 is about 597.2405058880.

Adding to 213033432 its reverse (234330312), we get a palindrome (447363744).

The spelling of 213033432 in words is "two hundred thirteen million, thirty-three thousand, four hundred thirty-two".