243396416 has 28 divisors (see below), whose sum is σ = 487692192. Its totient is φ = 120513408.

The previous prime is 243396359. The next prime is 243396443. The reversal of 243396416 is 614693342.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 243396416.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 11870 + ... + 25053.

Almost surely, 2^243396416 is an apocalyptic number.

It is an amenable number.

243396416 is an abundant number, since it is smaller than the sum of its proper divisors (244295776).

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

243396416 is a wasteful number, since it uses less digits than its factorization.

243396416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37038 (or 37028 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 243396416 is about 15601.1671358267. The cubic root of 243396416 is about 624.3642952798.

The spelling of 243396416 in words is "two hundred forty-three million, three hundred ninety-six thousand, four hundred sixteen".