243792140 has 12 divisors (see below), whose sum is σ = 511963536. Its totient is φ = 97516848.

The previous prime is 243792127. The next prime is 243792151. The reversal of 243792140 is 41297342.

It is a junction number, because it is equal to n+sod(n) for n = 243792097 and 243792106.

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, 6094784 + ... + 6094823.

It is an arithmetic number, because the mean of its divisors is an integer number (42663628).

Almost surely, 2^243792140 is an apocalyptic number.

243792140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243792140 is an abundant number, since it is smaller than the sum of its proper divisors (268171396).

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

243792140 is a wasteful number, since it uses less digits than its factorization.

243792140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12189616 (or 12189614 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 243792140 is about 15613.8444977526. The cubic root of 243792140 is about 624.7024845311.

The spelling of 243792140 in words is "two hundred forty-three million, seven hundred ninety-two thousand, one hundred forty".