213706330 has 8 divisors (see below), whose sum is σ = 384671412. Its totient is φ = 85482528.

The previous prime is 213706327. The next prime is 213706369. The reversal of 213706330 is 33607312.

It can be written as a sum of positive squares in 2 ways, for example, as 212663889 + 1042441 = 14583^2 + 1021^2 .

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 = 213706295 and 213706304.

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, 10685307 + ... + 10685326.

Almost surely, 2^213706330 is an apocalyptic number.

213706330 is a deficient number, since it is larger than the sum of its proper divisors (170965082).

213706330 is a wasteful number, since it uses less digits than its factorization.

213706330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21370640.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 213706330 is about 14618.6979584367. The cubic root of 213706330 is about 597.8686694965.

The spelling of 213706330 in words is "two hundred thirteen million, seven hundred six thousand, three hundred thirty".