213908330 has 8 divisors (see below), whose sum is σ = 385035012. Its totient is φ = 85563328.

The previous prime is 213908329. The next prime is 213908353. The reversal of 213908330 is 33809312.

213908330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 213773641 + 134689 = 14621^2 + 367^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 213908293 and 213908302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10695407 + ... + 10695426.

Almost surely, 2^213908330 is an apocalyptic number.

213908330 is a deficient number, since it is larger than the sum of its proper divisors (171126682).

213908330 is a wasteful number, since it uses less digits than its factorization.

213908330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21390840.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 213908330 is about 14625.6052866198. The cubic root of 213908330 is about 598.0569831197.

The spelling of 213908330 in words is "two hundred thirteen million, nine hundred eight thousand, three hundred thirty".