243021010 has 8 divisors (see below), whose sum is σ = 437437836. Its totient is φ = 97208400.

The previous prime is 243021007. The next prime is 243021017. The reversal of 243021010 is 10120342.

It can be written as a sum of positive squares in 2 ways, for example, as 242518329 + 502681 = 15573^2 + 709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×243021010² = 118118422602840200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243021017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12151041 + ... + 12151060.

Almost surely, 2^243021010 is an apocalyptic number.

243021010 is a deficient number, since it is larger than the sum of its proper divisors (194416826).

243021010 is a wasteful number, since it uses less digits than its factorization.

243021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24302108.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 243021010 is about 15589.1311496183. The cubic root of 243021010 is about 624.0431309903.

Adding to 243021010 its reverse (10120342), we get a palindrome (253141352).

The spelling of 243021010 in words is "two hundred forty-three million, twenty-one thousand, ten".