243490392 has 48 divisors (see below), whose sum is σ = 660820680. Its totient is φ = 80995200.

The previous prime is 243490391. The next prime is 243490411. The reversal of 243490392 is 293094342.

243490392 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243490391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34267 + ... + 40757.

Almost surely, 2^243490392 is an apocalyptic number.

It is an amenable number.

243490392 is an abundant number, since it is smaller than the sum of its proper divisors (417330288).

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

243490392 is a wasteful number, since it uses less digits than its factorization.

243490392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024 (or 7017 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 243490392 is about 15604.1786711124. The cubic root of 243490392 is about 624.4446411754. Note that the first 3 decimals are identical.

The spelling of 243490392 in words is "two hundred forty-three million, four hundred ninety thousand, three hundred ninety-two".