213603232 has 48 divisors (see below), whose sum is σ = 447068160. Its totient is φ = 100113408.

The previous prime is 213603223. The next prime is 213603251. The reversal of 213603232 is 232306312.

213603232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×213603232³ (a number of 26 digits) contains 333 as substring.

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, 166369 + ... + 167647.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^213603232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213603232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223534080).

213603232 is an abundant number, since it is smaller than the sum of its proper divisors (233464928).

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

213603232 is a wasteful number, since it uses less digits than its factorization.

213603232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 213603232 is about 14615.1712956092. The cubic root of 213603232 is about 597.7725110925.

Adding to 213603232 its reverse (232306312), we get a palindrome (445909544).

The spelling of 213603232 in words is "two hundred thirteen million, six hundred three thousand, two hundred thirty-two".