213022830 has 16 divisors (see below), whose sum is σ = 511254864. Its totient is φ = 56806080.

The previous prime is 213022819. The next prime is 213022841. The reversal of 213022830 is 38220312.

It is an interprime number because it is at equal distance from previous prime (213022819) and next prime (213022841).

It is a super-2 number, since 2×213022830² = 90757452202417800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213022797 and 213022806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3550351 + ... + 3550410.

It is an arithmetic number, because the mean of its divisors is an integer number (31953429).

Almost surely, 2^213022830 is an apocalyptic number.

213022830 is an abundant number, since it is smaller than the sum of its proper divisors (298232034).

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

213022830 is a wasteful number, since it uses less digits than its factorization.

213022830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7100771.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 213022830 is about 14595.3016412817. The cubic root of 213022830 is about 597.2305981334.

The spelling of 213022830 in words is "two hundred thirteen million, twenty-two thousand, eight hundred thirty".