243023208 has 32 divisors (see below), whose sum is σ = 609832800. Its totient is φ = 80704448.

The previous prime is 243023201. The next prime is 243023213. The reversal of 243023208 is 802320342.

It is a super-2 number, since 2×243023208² = 118120559253222528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (243023201) 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, 12366 + ... + 25277.

It is an arithmetic number, because the mean of its divisors is an integer number (19057275).

Almost surely, 2^243023208 is an apocalyptic number.

It is an amenable number.

243023208 is an abundant number, since it is smaller than the sum of its proper divisors (366809592).

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

243023208 is a wasteful number, since it uses less digits than its factorization.

243023208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37921 (or 37917 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 243023208 is about 15589.2016472942. The cubic root of 243023208 is about 624.0450123677.

The spelling of 243023208 in words is "two hundred forty-three million, twenty-three thousand, two hundred eight".