243630455 has 16 divisors (see below), whose sum is σ = 295432704. Its totient is φ = 192865440.

The previous prime is 243630449. The next prime is 243630461. The reversal of 243630455 is 554036342.

243630455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243630449) and next prime (243630461).

It is not a de Polignac number, because 243630455 - 2⁸ = 243630199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235790 + ... + 236820.

It is an arithmetic number, because the mean of its divisors is an integer number (18464544).

Almost surely, 2^243630455 is an apocalyptic number.

243630455 is a deficient number, since it is larger than the sum of its proper divisors (51802249).

243630455 is a wasteful number, since it uses less digits than its factorization.

243630455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 243630455 is about 15608.6660224377. Note that the first 3 decimals coincide. The cubic root of 243630455 is about 624.5643513403.

Adding to 243630455 its reverse (554036342), we get a palindrome (797666797).

The spelling of 243630455 in words is "two hundred forty-three million, six hundred thirty thousand, four hundred fifty-five".