213958330 has 16 divisors (see below), whose sum is σ = 385428744. Its totient is φ = 85515840.

The previous prime is 213958321. The next prime is 213958333. The reversal of 213958330 is 33859312.

It can be written as a sum of positive squares in 4 ways, for example, as 110061081 + 103897249 = 10491^2 + 10193^2 .

It is not an unprimeable number, because it can be changed into a prime (213958333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6064 + ... + 21556.

Almost surely, 2^213958330 is an apocalyptic number.

213958330 is a deficient number, since it is larger than the sum of its proper divisors (171470414).

213958330 is a wasteful number, since it uses less digits than its factorization.

213958330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16881.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 213958330 is about 14627.3145177097. The cubic root of 213958330 is about 598.1035770969.

The spelling of 213958330 in words is "two hundred thirteen million, nine hundred fifty-eight thousand, three hundred thirty".