243130044 has 12 divisors (see below), whose sum is σ = 567303464. Its totient is φ = 81043344.

The previous prime is 243130031. The next prime is 243130051. The reversal of 243130044 is 440031342.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×243130044² = 118224436590883872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243130044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130407 + ... + 10130430.

Almost surely, 2^243130044 is an apocalyptic number.

It is an amenable number.

243130044 is an abundant number, since it is smaller than the sum of its proper divisors (324173420).

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

243130044 is a wasteful number, since it uses less digits than its factorization.

243130044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260844 (or 20260842 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243130044 is about 15592.6278734535. The cubic root of 243130044 is about 624.1364449324.

Adding to 243130044 its reverse (440031342), we get a palindrome (683161386).

The spelling of 243130044 in words is "two hundred forty-three million, one hundred thirty thousand, forty-four".