243340104 has 32 divisors (see below), whose sum is σ = 695257920. Its totient is φ = 69525696.

The previous prime is 243340093. The next prime is 243340121. The reversal of 243340104 is 401043342.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 724059 + ... + 724394.

It is an arithmetic number, because the mean of its divisors is an integer number (21726810).

Almost surely, 2^243340104 is an apocalyptic number.

243340104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243340104 is an abundant number, since it is smaller than the sum of its proper divisors (451917816).

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

243340104 is a wasteful number, since it uses less digits than its factorization.

243340104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448469 (or 1448465 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243340104 is about 15599.3622946581. The cubic root of 243340104 is about 624.3161407580.

Adding to 243340104 its reverse (401043342), we get a palindrome (644383446).

The spelling of 243340104 in words is "two hundred forty-three million, three hundred forty thousand, one hundred four".