243373740 has 24 divisors (see below), whose sum is σ = 681446640. Its totient is φ = 64899648.

The previous prime is 243373733. The next prime is 243373759. The reversal of 243373740 is 47373342.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028055 + ... + 2028174.

It is an arithmetic number, because the mean of its divisors is an integer number (28393610).

Almost surely, 2^243373740 is an apocalyptic number.

243373740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243373740 is an abundant number, since it is smaller than the sum of its proper divisors (438072900).

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

243373740 is a wasteful number, since it uses less digits than its factorization.

243373740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056241 (or 4056239 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 33.

The square root of 243373740 is about 15600.4403783996. The cubic root of 243373740 is about 624.3449050676.

The spelling of 243373740 in words is "two hundred forty-three million, three hundred seventy-three thousand, seven hundred forty".