243244012 has 24 divisors (see below), whose sum is σ = 470921472. Its totient is φ = 109006800.

The previous prime is 243244009. The next prime is 243244013. The reversal of 243244012 is 210442342.

It is a happy number.

It is a super-2 number, since 2×243244012² = 118335298747712288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (243244013) 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, 35808 + ... + 42055.

It is an arithmetic number, because the mean of its divisors is an integer number (19621728).

Almost surely, 2^243244012 is an apocalyptic number.

243244012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243244012 is a deficient number, since it is larger than the sum of its proper divisors (227677460).

243244012 is a wasteful number, since it uses less digits than its factorization.

243244012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77949 (or 77947 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 243244012 is about 15596.2819928341. The cubic root of 243244012 is about 624.2339516956.

Adding to 243244012 its reverse (210442342), we get a palindrome (453686354).

The spelling of 243244012 in words is "two hundred forty-three million, two hundred forty-four thousand, twelve".