243473976 has 48 divisors (see below), whose sum is σ = 663390000. Its totient is φ = 80668032.

The previous prime is 243473957. The next prime is 243474029. The reversal of 243473976 is 679374342.

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 11 ways as a sum of consecutive naturals, for example, 1900 + ... + 22148.

It is an arithmetic number, because the mean of its divisors is an integer number (13820625).

Almost surely, 2^243473976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243473976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331695000).

243473976 is an abundant number, since it is smaller than the sum of its proper divisors (419916024).

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

243473976 is a wasteful number, since it uses less digits than its factorization.

243473976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20428 (or 20421 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

The square root of 243473976 is about 15603.6526492998. The cubic root of 243473976 is about 624.4306076119.

The spelling of 243473976 in words is "two hundred forty-three million, four hundred seventy-three thousand, nine hundred seventy-six".