243992898 has 24 divisors (see below), whose sum is σ = 548232048. Its totient is φ = 81330804.

The previous prime is 243992893. The next prime is 243992899. The reversal of 243992898 is 898299342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (243992893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250536 + ... + 251507.

It is an arithmetic number, because the mean of its divisors is an integer number (22843002).

Almost surely, 2^243992898 is an apocalyptic number.

243992898 is an abundant number, since it is smaller than the sum of its proper divisors (304239150).

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

243992898 is an equidigital number, since it uses as much as digits as its factorization.

243992898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502060 (or 502048 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 243992898 is about 15620.2720206788. The cubic root of 243992898 is about 624.8739141922.

The spelling of 243992898 in words is "two hundred forty-three million, nine hundred ninety-two thousand, eight hundred ninety-eight".