213086328 has 128 divisors (see below), whose sum is σ = 671193600. Its totient is φ = 54867456.

The previous prime is 213086309. The next prime is 213086333. The reversal of 213086328 is 823680312.

213086328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92778 + ... + 95046.

It is an arithmetic number, because the mean of its divisors is an integer number (5243700).

Almost surely, 2^213086328 is an apocalyptic number.

213086328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213086328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335596800).

213086328 is an abundant number, since it is smaller than the sum of its proper divisors (458107272).

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

213086328 is a wasteful number, since it uses less digits than its factorization.

213086328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 213086328 is about 14597.4767682638. The cubic root of 213086328 is about 597.2899332152.

The spelling of 213086328 in words is "two hundred thirteen million, eighty-six thousand, three hundred twenty-eight".