213403332 has 24 divisors (see below), whose sum is σ = 504246400. Its totient is φ = 70233696.

The previous prime is 213403321. The next prime is 213403357. The reversal of 213403332 is 233304312.

It is a junction number, because it is equal to n+sod(n) for n = 213403299 and 213403308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111607 + ... + 113502.

Almost surely, 2^213403332 is an apocalyptic number.

It is an amenable number.

213403332 is an abundant number, since it is smaller than the sum of its proper divisors (290843068).

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

213403332 is a wasteful number, since it uses less digits than its factorization.

213403332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225195 (or 225193 counting only the distinct ones).

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

The square root of 213403332 is about 14608.3309108193. The cubic root of 213403332 is about 597.5859783022.

Adding to 213403332 its reverse (233304312), we get a palindrome (446707644).

The spelling of 213403332 in words is "two hundred thirteen million, four hundred three thousand, three hundred thirty-two".