210730224 has 40 divisors (see below), whose sum is σ = 544965120. Its totient is φ = 70168768.

The previous prime is 210730217. The next prime is 210730231. The reversal of 210730224 is 422037012.

It is an interprime number because it is at equal distance from previous prime (210730217) and next prime (210730231).

It is a self number, because there is not a number n which added to its sum of digits gives 210730224.

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, 61057 + ... + 64415.

It is an arithmetic number, because the mean of its divisors is an integer number (13624128).

Almost surely, 2^210730224 is an apocalyptic number.

210730224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

210730224 is an abundant number, since it is smaller than the sum of its proper divisors (334234896).

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

210730224 is a wasteful number, since it uses less digits than its factorization.

210730224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4671 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 210730224 is about 14516.5500033582. The cubic root of 210730224 is about 595.0803497638.

Adding to 210730224 its reverse (422037012), we get a palindrome (632767236).

The spelling of 210730224 in words is "two hundred ten million, seven hundred thirty thousand, two hundred twenty-four".