243225404 has 6 divisors (see below), whose sum is σ = 425644464. Its totient is φ = 121612700.

The previous prime is 243225401. The next prime is 243225413. The reversal of 243225404 is 404522342.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243225401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30403172 + ... + 30403179.

It is an arithmetic number, because the mean of its divisors is an integer number (70940744).

Almost surely, 2^243225404 is an apocalyptic number.

It is an amenable number.

243225404 is a deficient number, since it is larger than the sum of its proper divisors (182419060).

243225404 is a wasteful number, since it uses less digits than its factorization.

243225404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60806355 (or 60806353 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 243225404 is about 15595.6854289896. The cubic root of 243225404 is about 624.2180334667.

Adding to 243225404 its reverse (404522342), we get a palindrome (647747746).

The spelling of 243225404 in words is "two hundred forty-three million, two hundred twenty-five thousand, four hundred four".