243878996 has 6 divisors (see below), whose sum is σ = 426788250. Its totient is φ = 121939496.

The previous prime is 243878993. The next prime is 243879007. The reversal of 243878996 is 699878342.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 232562500 + 11316496 = 15250^2 + 3364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243878993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30484871 + ... + 30484878.

It is an arithmetic number, because the mean of its divisors is an integer number (71131375).

Almost surely, 2^243878996 is an apocalyptic number.

It is an amenable number.

243878996 is a deficient number, since it is larger than the sum of its proper divisors (182909254).

243878996 is a wasteful number, since it uses less digits than its factorization.

243878996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60969753 (or 60969751 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 243878996 is about 15616.6256278365. The cubic root of 243878996 is about 624.7766634561.

The spelling of 243878996 in words is "two hundred forty-three million, eight hundred seventy-eight thousand, nine hundred ninety-six".