243046740 has 24 divisors (see below), whose sum is σ = 680531040. Its totient is φ = 64812448.

The previous prime is 243046733. The next prime is 243046777. The reversal of 243046740 is 47640342.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 243046698 and 243046707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025330 + ... + 2025449.

It is an arithmetic number, because the mean of its divisors is an integer number (28355460).

Almost surely, 2^243046740 is an apocalyptic number.

243046740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243046740 is an abundant number, since it is smaller than the sum of its proper divisors (437484300).

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

243046740 is a wasteful number, since it uses less digits than its factorization.

243046740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050791 (or 4050789 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 243046740 is about 15589.9563822353. The cubic root of 243046740 is about 624.0651538642.

The spelling of 243046740 in words is "two hundred forty-three million, forty-six thousand, seven hundred forty".