213995830 has 24 divisors (see below), whose sum is σ = 409189248. Its totient is φ = 80562048.

The previous prime is 213995819. The next prime is 213995833. The reversal of 213995830 is 38599312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213995833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34134 + ... + 39913.

It is an arithmetic number, because the mean of its divisors is an integer number (17049552).

Almost surely, 2^213995830 is an apocalyptic number.

213995830 is a deficient number, since it is larger than the sum of its proper divisors (195193418).

213995830 is a wasteful number, since it uses less digits than its factorization.

213995830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74088 (or 74071 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 213995830 is about 14628.5963099677. The cubic root of 213995830 is about 598.1385178163.

It can be divided in two parts, 2139 and 95830, that added together give a square (97969 = 313²).

The spelling of 213995830 in words is "two hundred thirteen million, nine hundred ninety-five thousand, eight hundred thirty".