243155346 has 48 divisors (see below), whose sum is σ = 577777536. Its totient is φ = 67990944.

The previous prime is 243155323. The next prime is 243155371. The reversal of 243155346 is 643551342.

243155346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5020 + ... + 22616.

It is an arithmetic number, because the mean of its divisors is an integer number (12037032).

Almost surely, 2^243155346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243155346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288888768).

243155346 is an abundant number, since it is smaller than the sum of its proper divisors (334622190).

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

243155346 is a wasteful number, since it uses less digits than its factorization.

243155346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17663 (or 17656 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 243155346 is about 15593.4391973035. The cubic root of 243155346 is about 624.1580950095.

The spelling of 243155346 in words is "two hundred forty-three million, one hundred fifty-five thousand, three hundred forty-six".