243091734 has 8 divisors (see below), whose sum is σ = 486183480. Its totient is φ = 81030576.

The previous prime is 243091711. The next prime is 243091817. The reversal of 243091734 is 437190342.

It is a sphenic number, since it is the product of 3 distinct primes.

243091734 is an admirable number.

It is a super-2 number, since 2×243091734² = 118187182278253512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243091695 and 243091704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20257639 + ... + 20257650.

It is an arithmetic number, because the mean of its divisors is an integer number (60772935).

Almost surely, 2^243091734 is an apocalyptic number.

243091734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243091734 is a wasteful number, since it uses less digits than its factorization.

243091734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40515294.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 243091734 is about 15591.3993599035. The cubic root of 243091734 is about 624.1036614848.

The spelling of 243091734 in words is "two hundred forty-three million, ninety-one thousand, seven hundred thirty-four".