243250404 has 12 divisors (see below), whose sum is σ = 567584304. Its totient is φ = 81083464.

The previous prime is 243250387. The next prime is 243250409. The reversal of 243250404 is 404052342.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (243250409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10135422 + ... + 10135445.

It is an arithmetic number, because the mean of its divisors is an integer number (47298692).

Almost surely, 2^243250404 is an apocalyptic number.

It is an amenable number.

243250404 is an abundant number, since it is smaller than the sum of its proper divisors (324333900).

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

243250404 is a wasteful number, since it uses less digits than its factorization.

243250404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20270874 (or 20270872 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 243250404 is about 15596.4869121222. The cubic root of 243250404 is about 624.2394195499.

The spelling of 243250404 in words is "two hundred forty-three million, two hundred fifty thousand, four hundred four".