243092940 has 48 divisors (see below), whose sum is σ = 682009440. Its totient is φ = 64696320.

The previous prime is 243092933. The next prime is 243092947. The reversal of 243092940 is 49290342.

It is an interprime number because it is at equal distance from previous prime (243092933) and next prime (243092947).

It is not an unprimeable number, because it can be changed into a prime (243092947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28716 + ... + 36204.

It is an arithmetic number, because the mean of its divisors is an integer number (14208530).

Almost surely, 2^243092940 is an apocalyptic number.

243092940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243092940 is an abundant number, since it is smaller than the sum of its proper divisors (438916500).

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

243092940 is a wasteful number, since it uses less digits than its factorization.

243092940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042 (or 8040 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 243092940 is about 15591.4380350242. The cubic root of 243092940 is about 624.1046935613.

The spelling of 243092940 in words is "two hundred forty-three million, ninety-two thousand, nine hundred forty".